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Quality Commitment
Serving our customers with quality and safety first.
- AS9120 Certified
- Audited supply chain
- ITAR Registered
- DDTC Registered
- HAZMAT Certified
- Customer service objectives
- Every product 100% inspected
Datasheet. 99122755 specification
Thread Pitch Diameters
The minimum and maximum pitch diameter limits of a straight screw thread.
The minimum and maximum pitch diameter limits of a straight screw thread.
+1.7309/+1.7354in.
Thread Direction
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
RIGHT-Hand
Drive Point Depth
0.094in.
Nut Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
round
Nut Diameter
2.511in. and 2.541in.
Nut Thickness
A measurement between the opposite flat surfaces of the nut,in distinction from length or width.
A measurement between the opposite flat surfaces of the nut,in distinction from length or width.
0.428in. and 0.448in.
Drive Point Width
0.240in. and 0.260in.
Drive Point Quantity
4
Thread Series
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
uns
Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
18
Hardness Rating
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
66.0 rockwell b and 92.0 rockwell b
Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.
A designation that is used for the purpose of general identification of the thread.
1.767in. ⁓1-25/32"
Material
The chemical compound or mechanical mixture properties of which the item is fabricated.
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1023 or steel comp 1025 or steel comp 1524 or steel comp 1026 or steel comp 1527 or steel comp 1030 or steel comp 1033 or steel comp 1034 or steel comp 1035
Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
66 fed std all material responses
Answers.
What material is the plain round nut made of ?
Steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1023 or steel comp 1025 or steel comp 1524 or steel comp 1026 or steel comp 1527 or steel comp 1030 or steel comp 1033 or steel comp 1034 or steel comp 1035
What is the thread quantity per inch?
18
What is the thread direction?
Right-hand
How is this classified for shipping?
Schedule B number: 7318160000
nmfc 093486
Nuts of iron or steel
What's the federal classification of 99122755?
FSC 5310 ⁓ Nuts and washers
Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.
Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).
NSN 5310-00-185-6461 NUT,PLAIN,ROUND
18 thread quantity per inch right-hand
- NIIN
- 001856461
- NIIN Date
- 01/01/61
- Schedule B
- 7318160000
- Name Code
- 15887
- FIIG
- A021A0
- Item Weight
- 0.500lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $16.95 EA
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- No precious metals
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | N09 | Cage D9182 |
| 2. | SKF-N-09 | Cage D9182 |
| 3. | 17622 | Cage 93232 |
| 4. | 35050-005-AA | Cage 50380 |
| 5. | N-09 | Cage 50380 |
| 6. | MS19068-091 | Cage 96906 |
| 7. | N09 | Cage 52676 |
| 8. | 3229283 | Cage 55380 |
| 9. | 3203785 | Cage 55380 |
| 10. | 3300A69A0118-007 | Cage 12532 |
| 11. | 8601-0009 | Cage 25681 |
| 12. | N-09 | Cage 43334 |
| 13. | 5559904-010 | Cage 55102 |
| 14. | DE31037 | Cage 6N299 |
| 15. | DE31040LPCDE31037 | Cage 6N299 |
| 16. | 0030107 | Cage 89926 |
| 17. | 0030107-7 | Cage 89926 |
| 18. | 030107 | Cage 89926 |
| 19. | 22839A | Cage 1ML14 |
| 20. | 81902PC22839A | Cage 1ML14 |
| 21. | N09 | Cage 81343 |
| 22. | 26A34 | Cage 61790 |
| 23. | N09 | Cage 01212 |
| 24. | 10183 | Cage 10941 |
| 25. | 10A2PC183 | Cage 10941 |
| 26. | 6183 | Cage 10941 |
| 27. | 6A5PC183 | Cage 10941 |
| 28. | N09 | Cage 10941 |
| 29. | 8B7207 | Cage 11083 |
| 30. | DD6677PC4 | Cage 16712 |
| 31. | G10075PC21 | Cage 16712 |
| 32. | N09 | Cage 16712 |
| 33. | E11752-6PC119 | Cage 17454 |
| 34. | 5-1110PC14 | Cage 42175 |
| 35. | 5-1116-202 | Cage 42175 |
| 36. | 5-1117ITEM25 | Cage 42175 |
| 37. | 5-1109PC14 | Cage 42175 |
| 38. | 5-1109PC202 | Cage 42175 |
| 39. | 5-951P14 | Cage 42175 |
| 40. | N09 | Cage 42175 |
| 41. | N09 | Cage 43991 |
| 42. | 38000-3060CPC33 | Cage 44114 |
| 43. | 38000-3060PC33 | Cage 44114 |
| 44. | 38001-3060F200PC29 | Cage 44114 |
| 45. | N09 | Cage 44114 |
| 46. | 8000-4800F2002PC6 | Cage 44114 |
| 47. | 72-6971-309 | Cage 50024 |
| 48. | A1983R2-18 | Cage 53553 |
| 49. | A1983RPC18 | Cage 53553 |
| 50. | N09 | Cage 53553 |
| 51. | 500B225-10 | Cage 58923 |
| 52. | N09 | Cage 60038 |
| 53. | 16885PCM733 | Cage 61208 |
| 54. | 17596PCM733 | Cage 61208 |
| 55. | 20210PCM733 | Cage 61208 |
| 56. | G7794PC54 | Cage 61208 |
| 57. | G9747PC54 | Cage 61208 |
| 58. | G9750PC54 | Cage 61208 |
| 59. | G9843PC54 | Cage 61208 |
| 60. | G9846PC54 | Cage 61208 |
| 61. | G9923PC54 | Cage 61208 |
| 62. | G9926PC54 | Cage 61208 |
| 63. | G9974PC54 | Cage 61208 |
| 64. | G9977PC54 | Cage 61208 |
| 65. | M733 | Cage 61208 |
| 66. | MG101PCM733 | Cage 61208 |
| 67. | MG125PCM733 | Cage 61208 |
| 68. | F100-02TC1PCM733 | Cage 61208 |
| 69. | F100-02TCPCM733 | Cage 61208 |
| 70. | G10077PC21 | Cage 61208 |
| 71. | G10089PC19 | Cage 61208 |
| 72. | G10091PC19 | Cage 61208 |
| 73. | G5800PC44 | Cage 61208 |
| 74. | G5802PC44 | Cage 61208 |
| 75. | G7709PC45 | Cage 61208 |
| 76. | G7712PC45 | Cage 61208 |
| 77. | G7791PC54 | Cage 61208 |
| 78. | X8840APCM733 | Cage 61208 |
| 79. | X9053PCM733 | Cage 61208 |
| 80. | X9065APCM733 | Cage 61208 |
| 81. | X9210PCM733 | Cage 61208 |
| 82. | X9211PCM733 | Cage 61208 |
| 83. | MG165PCM733 | Cage 61208 |
| 84. | N09 | Cage 61208 |
| 85. | TDM733 | Cage 61208 |
| 86. | VM733 | Cage 61208 |
| 87. | X207042APCM733 | Cage 61208 |
| 88. | A209967-15 | Cage 61637 |
| 89. | Z200-030PCM733 | Cage 61208 |
| 90. | N09 | Cage 61637 |
| 91. | BS616PC19 | Cage 63857 |
| 92. | BS5-1641-42 | Cage 63857 |
| 93. | N09 | Cage 63857 |
| 94. | Y6571 | Cage 64104 |
| 95. | N09 | Cage 70413 |
| 96. | VX101 | Cage 72328 |
| 97. | B2028-14 | Cage 20328 |
| 98. | B4061-14 | Cage 20328 |
| 99. | N09 | Cage 20328 |
| 100. | N09 | Cage 21335 |
| 101. | 93829PC27 | Cage 21444 |
| 102. | 801087PC732 | Cage 21444 |
| 103. | 801088PC732 | Cage 21444 |
| 104. | N09 | Cage 21760 |
| 105. | 238-5-42 | Cage 25681 |
| 106. | N09 | Cage 26840 |
| 107. | RM82-44 | Cage 27996 |
| 108. | RM82A44 | Cage 27996 |
| 109. | N09 | Cage 31974 |
| 110. | 07046 | Cage 31974 |
| 111. | NAVYX2079PC78 | Cage 31974 |
| 112. | NX2073PC78 | Cage 31974 |
| 113. | N09 | Cage 33781 |
| 114. | 3090-2PC39 | Cage 33781 |
| 115. | 3090-3PC39 | Cage 33781 |
| 116. | 3090-4PC39 | Cage 33781 |
| 117. | 3090-7PC26 | Cage 33781 |
| 118. | 3090-9PC26 | Cage 33781 |
| 119. | XX4111A | Cage 81795 |
| 120. | 4111A | Cage 81795 |
| 121. | 99WNBAPC41 | Cage 82796 |
| 122. | 99WNBB41 | Cage 82796 |
| 123. | N09 | Cage 82796 |
| 124. | 929040 | Cage 88818 |
| 125. | 1F102PC4 | Cage 88818 |
| 126. | 1F212SH2PC4 | Cage 88818 |
| 127. | K131963 | Cage 88818 |
| 128. | N09 | Cage 88818 |
| 129. | A155-362AP5APC68NUT | Cage 90785 |
| 130. | 29J789-119 | Cage 79500 |
| 131. | E11752-6PC119 | Cage 79500 |
| 132. | N09 | Cage 79568 |
| 133. | 215490PC4 | Cage 88032 |
| 134. | 215493PC4 | Cage 88032 |
| 135. | 215705PC4 | Cage 88032 |
| 136. | 215869PC4 | Cage 88032 |
| 137. | 217384PC4 | Cage 88032 |
| 138. | 217387PC4 | Cage 88032 |
| 139. | 217421PC4 | Cage 88032 |
| 140. | 217425PC4 | Cage 88032 |
| 141. | 2NT240X1-9 | Cage 88032 |
| 142. | W6GTM500X9PC240A | Cage 88032 |
| 143. | Y3NT240X1-9 | Cage 88032 |
| 144. | B17007-80 | Cage 93232 |
| 145. | N09 | Cage 93232 |
| 146. | 711016 | Cage 21450 |
| 147. | 26A34 | Cage 0MKW7 |
| 148. | 08P10847-0900 | Cage 52142 |
| 149. | SF10505 REV D ITEM NO 017 | Cage 59180 |
| 150. | M-3151 PIECE NO 7 | Cage 46175 |
| 151. | 760-N-09 | Cage 10941 |
| 152. | 55-22004 PART 4 | Cage 52081 |
| 153. | R2650-855PC10 | Cage 96169 |
| 154. | 11FM61A | Cage D9182 |
| 155. | 11FM61A0N09-000 6F | Cage D9182 |
| 156. | 08P10847-0900 | Cage D9182 |
| 157. | 525-513-9001 | Cage 99193 |
| 158. | 3203785 | Cage 72915 |
| 159. | 3229283 | Cage 72915 |
| 160. | SG2501PC86 | Cage 59170 |
| 161. | SG2570PC86 | Cage 59170 |
| 162. | SG2572PC86 | Cage 59170 |
| 163. | D106 | Cage 8E499 |
| 164. | N09 | Cage 51228 |
| 165. | 26A34 | Cage 05643 |
| 166. | 22839A | Cage 28265 |
| 167. | 81902PC22839A | Cage 28265 |
| 168. | 6E4878 | Cage 02413 |
| 169. | SC2680 | Cage 35311 |
| 170. | 3292-125 | Cage 37999 |
| 171. | C10340-9PC125 | Cage 37999 |
| 172. | 3360-119 | Cage 37999 |
| 173. | C10340-1PC125 | Cage 37999 |
| 174. | C3292-1DPC125 | Cage 37999 |
| 175. | C3292-7DPC125 | Cage 37999 |
| 176. | C2555-10DPC325 | Cage 37999 |
| 177. | C2555-1DPC325 | Cage 37999 |
| 178. | C2555-2DPC325 | Cage 37999 |
| 179. | C3440-1PC119 | Cage 37999 |
| 180. | C3440-6PC119 | Cage 37999 |
| 181. | C3360-1PC119 | Cage 37999 |
| 182. | C3360-6PC119 | Cage 37999 |
| 183. | C3457-6PC119 | Cage 37999 |
| 184. | C3460-1PC119 | Cage 37999 |
| 185. | C3460-6PC119 | Cage 37999 |
| 186. | C3456-1PC119 | Cage 37999 |
| 187. | C3456-6PC119 | Cage 37999 |
| 188. | C3457-1PC119 | Cage 37999 |
| 189. | C3521-6PC119 | Cage 37999 |
| 190. | C3522-1PC119 | Cage 37999 |
| 191. | C3522-6PC119 | Cage 37999 |
| 192. | C3591-1PC119 | Cage 37999 |
| 193. | C3520-1PC119 | Cage 37999 |
| 194. | C3520-6PC119 | Cage 37999 |
| 195. | C3521-1PC119 | Cage 37999 |
| 196. | C4100-1PC125 | Cage 37999 |
| 197. | C4100-7PC125 | Cage 37999 |
| 198. | C4101-1PC119 | Cage 37999 |
| 199. | C4101-6PC119 | Cage 37999 |
| 200. | C3591-6PC119 | Cage 37999 |
| 201. | C3593-1PC125 | Cage 37999 |
| 202. | C3593-7PC125 | Cage 37999 |
| 203. | C4102-1PC119 | Cage 37999 |
| 204. | C4102-6PC119 | Cage 37999 |
| 205. | N09 | Cage 37999 |
| 206. | VM733 | Cage 14351 |
| 207. | D2-10076PC70 | Cage 73057 |
| 208. | D2-10083PC12 | Cage 73057 |
| 209. | N09 | Cage 73057 |
| 210. | 36661 | Cage 59560 |
| 211. | E2644APC32 | Cage 59560 |
| 212. | E2644BPC32 | Cage 59560 |
| 213. | E2645APC32 | Cage 59560 |
| 214. | E2645PC32 | Cage 59560 |
| 215. | E2644CPC32 | Cage 59560 |
| 216. | E2644PC32 | Cage 59560 |
| 217. | E2649PC32 | Cage 59560 |
| 218. | E3265PC32 | Cage 59560 |
| 219. | E3261PC32 | Cage 59560 |
| 220. | N09 | Cage 59560 |
| 221. | DC66670TGPC27 | Cage 80060 |
| 222. | DC66670TKPC27 | Cage 80060 |
| 223. | 08P10847-0900 | Cage 01425 |
| 224. | D106 | Cage 59690 |
| 225. | 15502511-0000 ITEM 12 | Cage 01425 |
| 226. | 8039440ITEM2 | Cage 08219 |
| 227. | K16947APC53 | Cage 08219 |
| 228. | K16948APC53 | Cage 08219 |
| 229. | K18628APC23 | Cage 08219 |
| 230. | K18641APC18 | Cage 08219 |
| 231. | K18642APC23 | Cage 08219 |
| 232. | K18644APC18 | Cage 08219 |
| 233. | K1691APC25 | Cage 08219 |
| 234. | K16930APC18 | Cage 08219 |
| 235. | K16938APC18 | Cage 08219 |
| 236. | N09 | Cage 08219 |
| 237. | X41102ALT2PC81 | Cage 08219 |
| 238. | X41228ALT3PC54 | Cage 08219 |
| 239. | MB1970PC30 | Cage 20263 |
| 240. | N09 | Cage 20263 |
| 241. | 102972 | Cage 08219 |
| 242. | 310358-2 | Cage 08219 |
| 243. | 311481-81 | Cage 08219 |
| 244. | 1-69 | Cage 29690 |
| 245. | VM733 | Cage 76894 |
| 246. | 08-908-030PC21 | Cage 92392 |
| 247. | 50-06238-0-08-07 | Cage 92392 |
| 248. | 50-06238-0-08-078 | Cage 92392 |
| 249. | 53-003-046PC9 | Cage 92392 |
| 250. | 53-003-009ALT1PC9 | Cage 92392 |
| 251. | 53-003-018PC7 | Cage 92392 |
| 252. | 53-003-020PC7 | Cage 92392 |
| 253. | 999-548PC26C | Cage 92392 |
| 254. | DG2300ITEM29 | Cage 92392 |
| 255. | DR2308PC9 | Cage 92392 |
| 256. | DR2226PC6 | Cage 92392 |
| 257. | DR2230PC6 | Cage 92392 |
| 258. | DR2400PC6 | Cage 92392 |
| 259. | DR2401PC6 | Cage 92392 |
| 260. | DR2453PC9 | Cage 92392 |
| 261. | DR2522PC34 | Cage 92392 |
| 262. | DR2523PC32 | Cage 92392 |
| 263. | DR2550PC34 | Cage 92392 |
| 264. | DR2574PC6 | Cage 92392 |
| 265. | DR2575PC6 | Cage 92392 |
| 266. | DR2608PC34 | Cage 92392 |
| 267. | DR2524PC32 | Cage 92392 |
| 268. | DR2535PC9 | Cage 92392 |
| 269. | DR2536PC9 | Cage 92392 |
| 270. | DR2712PC9 | Cage 92392 |
| 271. | DR2778PC34 | Cage 92392 |
| 272. | DR2633PC9 | Cage 92392 |
| 273. | DR2641PC32 | Cage 92392 |
| 274. | DR2642PC32 | Cage 92392 |
| 275. | N09 | Cage 92392 |
| 276. | Q0008078 | Cage 92392 |
| 277. | SG2570PC86 | Cage 16712 |
| 278. | SG2572PC86 | Cage 16712 |
| 279. | SG2501PC86 | Cage 16712 |
| 280. | N09 | Cage 55102 |
| 281. | 5310001856461 | Cage SCY13 |
| 282. | 12Z335-10 | Cage 10001 |
| 283. | N09 | Cage 38443 |
| 284. | 340-93-31 | Cage 43689 |
| 285. | 10M85D | Cage 26840 |
| 286. | HN32PC16 | Cage 26840 |
| 287. | HN33PC16 | Cage 26840 |
| 288. | HN34PC16 | Cage 26840 |
| 289. | 18083PCM733 | Cage 61208 |
| 290. | 20212PCM733 | Cage 61208 |
| 291. | 20554PCM733 | Cage 61208 |
| 292. | 19993PCM733 | Cage 61208 |
| 293. | 20555PCM733 | Cage 61208 |
| 294. | 8B7207 | Cage 61208 |
| 295. | SAF9 | Cage 77107 |
| 296. | 215705PC4 | Cage 30760 |
| 297. | 215869PC4 | Cage 30760 |
| 298. | 215490PC4 | Cage 30760 |
| 299. | 215493PC4 | Cage 30760 |
| 300. | 217384PC4 | Cage 30760 |
| 301. | 217387PC4 | Cage 30760 |
| 302. | 217421PC4 | Cage 30760 |
| 303. | 217425PC4 | Cage 30760 |
| 304. | 3NT240X1-9 | Cage 30760 |
| 305. | W6GTM500X9PC240A | Cage 30760 |
| 306. | Y3NT240X1-9 | Cage 30760 |
| 307. | N09 | Cage 30760 |
| 308. | 3090-2PC39 | Cage 43491 |
| 309. | 3090-3PC39 | Cage 43491 |
| 310. | 3090-4PC39 | Cage 43491 |
| 311. | 3090-7PC26 | Cage 43491 |
| 312. | 3090-9PC26 | Cage 43491 |
| 313. | N09 | Cage 43491 |
| 314. | 215490PC4 | Cage 0UBG9 |
| 315. | 215493PC4 | Cage 0UBG9 |
| 316. | 215705PC4 | Cage 0UBG9 |
| 317. | 215869PC4 | Cage 0UBG9 |
| 318. | 217384PC4 | Cage 0UBG9 |
| 319. | 217387PC4 | Cage 0UBG9 |
| 320. | 217421PC4 | Cage 0UBG9 |
| 321. | 217425PC4 | Cage 0UBG9 |
| 322. | 2NT240X1-9 | Cage 0UBG9 |
| 323. | B17007-80 | Cage 0UBG9 |
| 324. | N09 | Cage 0UBG9 |
| 325. | W6GTM500X9PC240A | Cage 0UBG9 |
| 326. | Y3NT240X1-9 | Cage 0UBG9 |
Major End Users Countries and entities
- - National Aeronautics And Space Administration
- - Bureau of Engraving And Printing
- - Tennessee Valley Authority
- - Department of The Navy
- - Department of The Army
- - Department of The Air Force
- - U.s. Marine Corps
- - Austria
- - Lithuania
- - Poland
- - Brazil
- - Spain
- - Singapore
- - Kuwait
- - Morocco
- - Malaysia
- - Thailand
- - Australia
- - Canada
- - New Zealand
- - France
- - Germany
- - Republic of Korea
- - Netherlands
- - Portugal
- - Italy
- - Denmark
- - Greece
- - Turkey
Major End Items End use applications
- - Nuclear power plants
- - Elevators, cargo/weapons
- - Main feed pumps
- - Systems, jp-5 aviation fuels
- - Support equipment, b-1 aircraft
- - Elevators, aircraft
- - Fire pumps
- - Stream (std. tensioned replenishment at sea method)
- - Engine, aircraft, f-108 (cfm-56, kc-135a)
- - Cvn nuclear reactor boundary area
- - Crushing and screening plant
- - Antenna group,low b
- - Test stand,aircraft generator
- - Table assembly,tilt
- - Motor-generator
Availability for 99122755 A member of our team will provide you with a price and availability quote
Request a Quote »Shipping Information
- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- Rating variable
- LCL (less than a car load rating)
- Unknown
- Special Cargo
- No special type of cargo code applicable
- Air Freight (Minimum cargo door size required)
- Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- Customs Requirement Classification
- Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
- Commodity (for shipments via water)
- Bolts or nuts (iron or steel),(less than 35 feet)
- NMFC (national motor freight code)
- 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
- UFC (universal freight code)
- 48950
Similar by Design Other nuts with similar characteristics
Nothing similar to this part number was found in our inventory
99122755 / Nut,plain,roundWhat is the formal definition of this item?
A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. for items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. see also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
