W-20

W20 Key Washer
Home » Catalog » Nuts & Washers (p. 3031) » Key Washers (p. 75) » Part Number W-20

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Datasheet. W-20 specification

Hole Diameter
The length of a straight line which passes through the center of a hole,and terminates at the circumference.

3.988in. and 4.018in. ⁓4-1/32"

Outside Diameter
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.

4.812in. and 4.857in.

Internal Prebent Key Length

0.250in. and 0.312in.

External Prebent Key Width

0.298in. and 0.328in.

Internal Prebent Key Width

0.313in. and 0.353in.

Overall Distance Including Keys

5.500in.

External Key Quantity

19

Material Thickness
A measurement of the smallest dimension of the material,in distinction from length or width.

0.088in. and 0.100in.

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

w/s: los angeles class ssn (688) ; nimitz class cvn; forrestal class cv; oliver perry class ffg; lighter amphibious sp, 60-ton, LARC-Lx; elevators, aircraft; ticonderonga class cg (47) ; spruance class dd (963) ; elevators, cargo/weapons

Hardness Rating
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.

50.0 rockwell b and 81.0 rockwell b

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp 1010 or steel comp 1012 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019

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.

sae assn std all material responses

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

key

Answers.

What is the style?

Key

What material is the key washer made of ?

Steel comp 1010 or steel comp 1012 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019

What is the thickness?

0.088 inches minimum and 0.100 inches maximum

What is the outside diameter?

4.812 inches minimum and 4.857 inches maximum

What is the inside hole diameter?

3.988 inches minimum and 4.018 inches maximum

What is the NSN for W-20?

5310-00-186-0979

How is this classified for shipping?

Schedule B number: 7318220000
nmfc 194160
Washers other than lock washers, iron or steel

What's the federal classification of W-20?

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 5310-00-186-0979 WASHER,KEY

Used on w/s: los angeles class ssn (688); nimitz class cvn; forrestal class cv; oliver perry class ffg; lighter amphibious sp, 60-ton, larc-lx; elevators, aircraft; ticonderonga class cg (47); spruance class dd (963); elevators, cargo/weapons. key 0.088" material thickness 4.812" outside diameter 3.988" hole diameter

NIIN
001860979
NIIN Date
01/01/61
Schedule B
7318220000 
Name Code
01869
FIIG
A022B0
Item Weight
0.300lbs
Item Dimensions
--
QUP
 
Historical Price
$4.05 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
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. MS19070-201 Cage 96906
2. 1X41 Cage 2Y614
3. W20 Cage 3X894
4. W20 Cage 01212
5. 155475D269 Cage 05340
6. 155475DPC269 Cage 05340
7. AN1-4-7601-65PC269 Cage 05340
8. CM5-7601-289PC269 Cage 05340
9. W20 Cage 05340
10. 5-1109PC205 Cage 42175
11. 5-1116-205 Cage 42175
12. 5-1116PC205 Cage 42175
13. W20 Cage 42175
14. W20 Cage 43334
15. W20 Cage 43991
16. 72-6971-370 Cage 50024
17. W20 Cage 52676
18. W20 Cage 60038
19. W20 Cage 62137
20. 60327EPC128 Cage 65177
21. 60261EPC128 Cage 65177
22. 60419FPC159 Cage 65177
23. 60347CPC128 Cage 65177
24. 61947PC416 Cage 65177
25. W20 Cage 65177
26. C91080AHPC159 Cage 65177
27. G376745PC38 Cage 72957
28. G379508SHPC53 Cage 72957
29. G385140SH2PC53 Cage 72957
30. W20 Cage 72957
31. W20 Cage 21335
32. W20 Cage 21760
33. 9481225-81 Cage 24446
34. W20 Cage 24446
35. WW9481225PC81 Cage 24446
36. WW9481425PC81 Cage 24446
37. 127700 Cage 24617
38. W20 Cage 24617
39. 18Z1D18 Cage 27315
40. W20 Cage 38398
41. CA9005-42 Cage 38398
42. CA9005PC42 Cage 38398
43. AN1-4-7601-65PC269 Cage 81994
44. CM5-7601-289PC269 Cage 81994
45. 10AF10C2435APC20 Cage 82796
46. 10AF10C2435CPC20 Cage 82796
47. 13AF10B2435NPC20 Cage 82796
48. 13AF10B2435RPC20 Cage 82796
49. 15AF9B2435APC20 Cage 82796
50. 15AF9B2435DPC20 Cage 82796
51. 22AF10C2435APC20 Cage 82796
52. 22AF10C2435DPC20 Cage 82796
53. 7AF9B2435APC20 Cage 82796
54. 9AF9B2435A1PC20 Cage 82796
55. 9AF9B2435CPC20 Cage 82796
56. MAAFB2435APC20 Cage 82796
57. MAFB2435APC20 Cage 82796
58. MAFB2435DPC20 Cage 82796
59. W20 Cage 82796
60. R7364PCW20 Cage 97578
61. W20 Cage 97578
62. A7449PCW20 Cage 97578
63. 10A3779PC7 Cage 79500
64. 44J175PC27 Cage 79500
65. W20 Cage 79500
66. W20 Cage 79568
67. D204PC81 Cage 93232
68. W20 Cage 93232
69. MA7-010GISSUE3PC95 Cage 98523
70. MA4-121GISSUE2PC25 Cage 98523
71. HR6659 Cage 51228
72. C91080AHPC159 Cage 81600
73. 1X41 Cage 36384
74. W20 Cage 36384
75. DR2527PC35 Cage 92392
76. W20 Cage 92392
77. MA7-010GISSUE3PC95 Cage 65090
78. MA4-121GISSUE2PC25 Cage 65090
79. W20 Cage 16603
80. 12Z335-51 Cage 10001
81. W20 Cage 38443
82. 38247 Cage 30076
83. D204PC81 Cage 0UBG9
84. W20 Cage 0UBG9

Major End Users Countries and entities

  • - Department of The Navy 
  • - Department of The Army 
  • - Department of The Air Force 
  • - U.s. Marine Corps 
  • - U.s. Coast Guard 
  • - Poland 
  • - Brazil 
  • - Spain 
  • - Singapore 
  • - Australia 
  • - Canada 
  • - France 
  • - Republic of Korea 
  • - Italy 
  • - Greece 
  • - Turkey 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
50.0 
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)
Metal hardware 
NMFC (national motor freight code)
194160 WASHER OR GASKETS, IRON OR STEEL, 
UFC (universal freight code)
55210 

Similar by Design Other washers with similar characteristics

Nothing similar to this part number was found in our inventory

W-20 / Washer,keyWhat is the formal definition of this item?

A washer of nonresilient material usually having two parallel bearing surfaces. the outside and/or inside edges have one or more protuberances. the ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. the keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. excludes thrust type washer.