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Serving our customers with quality and safety first.
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Datasheet. 2643-820-12 ITEM 54 specification
Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3b
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
Locking Feature
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.
prevailing torque with nonmetallic insert
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.
hexagon
Nut Height
1.110in. and 1.140in. ⁓1-9/64"
Width Across Flats
The shortest straight line between flats,perpendicular to the height.
The shortest straight line between flats,perpendicular to the height.
1.427in. and 1.446in. ⁓1-29/64"
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.
unc
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.
9
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.
0.875in. ⁓7/8"
Criticality Code Justification
The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.
The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.
zzzw
Bearing Surface Type
Indicates the type of bearing surface.
Indicates the type of bearing surface.
washer faced
Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
7/8 in, 9 unc, 3b
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.
nickel alloy nut and plastic polyamide nut
Departure From Cited Document
The technical differentiating characteristic/s/ of an item of supply which depart/s/ from the text of a specification or a standard in that it represents a selection of characteristics stated in the specification or standard as being optional,or a variation from one or more of the stated characteristics,or an additional characteristic not stated in the specification or standard.
The technical differentiating characteristic/s/ of an item of supply which depart/s/ from the text of a specification or a standard in that it represents a selection of characteristics stated in the specification or standard as being optional,or a variation from one or more of the stated characteristics,or an additional characteristic not stated in the specification or standard.
quality control iaw navships 0948-045-7010 material identification and control instruction for level 1 items
Departure From Cited Designator
The variation when the item is in conformity with a type designator covered by a specification or standard,except in regard to one or more technical differentiating characteristics.
The variation when the item is in conformity with a type designator covered by a specification or standard,except in regard to one or more technical differentiating characteristics.
material controlled iaw navsea 0948-LP-045-7010 material control standard for level i items
Answers.
What material is the self-locking hexagon nut made of ?
Nickel alloy nut and plastic polyamide nut
What is the thread quantity per inch?
9
What is the thread direction?
Right-hand
What is the thread class?
3b
What's the federal classification of 2643-820-12 ITEM 54?
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 5310-00-088-5329 NUT,SELF-LOCKING,HEXAGON
7/8 in, 9 unc, 3b 9 thread quantity per inch right-hand 3b thread class
- NIIN
- 000885329
- NIIN Date
- 12/29/67
- Schedule B
- Name Code
- 05277
- FIIG
- A021A0
- Item Weight
- 2.500lbs
- Item Dimensions
- 60 X 40 X 30
- QUP
- Historical Price
- $50.00 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. | 845-7108795 ITEM 54 | Cage 53711 |
| 2. | 845-1930038 PC 27 | Cage 80064 |
| 3. | MILN25027 | Cage 81349 |
| 4. | M25027/1-14C | Cage 81349 |
| 5. | MS17828-14C | Cage 96906 |
| 6. | 999R0501 FIND 76 | Cage 63857 |
| 7. | PL-999R0501-D FIND 76 | Cage 63857 |
| 8. | PL-999R0501 FIND 76 | Cage 63857 |
| 9. | PL-999R0501-C FIND 76 | Cage 63857 |
| 10. | 1930038 PC 27 | Cage 80064 |
| 11. | 2007670 PC 11 | Cage 80064 |
| 12. | 2640-247PC13 | Cage 96169 |
| 13. | 593-7067139-193 | Cage 96169 |
| 14. | 4457348 PIECE 37 | Cage 43689 |
| 15. | 4457353 PIECE 37 | Cage 43689 |
| 16. | 6002-148 PC 25 | Cage 43689 |
| 17. | 167-6404556 FIND 75 | Cage 53711 |
| 18. | 211070737 | Cage 53711 |
| 19. | 6404556 FIND 75 | Cage 53711 |
| 20. | 64053040 FIND 25 | Cage 53711 |
| 21. | 6405340 FIND 25 | Cage 53711 |
| 22. | 801-6405340 FIND 25 | Cage 53711 |
| 23. | H577-3302-193 | Cage 96169 |
| 24. | 6405340 FIND 24 | Cage 53711 |
| 25. | 801-6405340 FIND 24 | Cage 53711 |
| 26. | H577-3302-267 | Cage 96169 |
| 27. | ESNA 09NU-149 | Cage 019L2 |
| 28. | 505-4457348 PIECE 37 | Cage 43689 |
| 29. | PL999R0523 PIECE 76 | Cage 63857 |
| 30. | 6405340 FIND 24L1 | Cage 03950 |
| 31. | 2641-747 ITEM 30 | Cage 96169 |
| 32. | 593-7067139-267 | Cage 96169 |
| 33. | MILN25027L1 | Cage 03950 |
| 34. | 593-7067139-267L1 | Cage 03950 |
| 35. | H577-3302-267L1 | Cage 03950 |
| 36. | ESNA 09NU-149L1 | Cage 03950 |
| 37. | PL999R0523 PIECE 76L1 | Cage 03950 |
| 38. | 167-6404556 FIND 75L1 | Cage 03950 |
| 39. | 1930038 PC 27L1 | Cage 03950 |
| 40. | 2007670 PC 11L1 | Cage 03950 |
| 41. | 4457348 PIECE 37L1 | Cage 03950 |
| 42. | 505-4457348 PIECE 37L1 | Cage 03950 |
| 43. | 593-7067139-193L1 | Cage 03950 |
| 44. | 6002-148 PC 25L1 | Cage 03950 |
| 45. | 211070737L1 | Cage 03950 |
| 46. | 2640-247PC13L1 | Cage 03950 |
| 47. | 2641-747 ITEM 30L1 | Cage 03950 |
| 48. | 2643-820-12 ITEM 54L1 | Cage 03950 |
| 49. | 845-7108795 ITEM 54L1 | Cage 03950 |
| 50. | 999R0501 FIND 76L1 | Cage 03950 |
| 51. | 6404556 FIND 75L1 | Cage 03950 |
| 52. | 64053040 FIND 25L1 | Cage 03950 |
| 53. | 6405340 FIND 25L1 | Cage 03950 |
| 54. | 801-6405340 FIND 24L1 | Cage 03950 |
| 55. | 801-6405340 FIND25L1 | Cage 03950 |
| 56. | 845-1930038 PC 27L1 | Cage 03950 |
| 57. | H577-3302-193L1 | Cage 03950 |
| 58. | M25027/1-14CL1 | Cage 03950 |
| 59. | MS17828-14L1 | Cage 03950 |
| 60. | PL-999R0501-D FIND 76L1 | Cage 03950 |
| 61. | PL-999R0501 FIND 76L1 | Cage 03950 |
| 62. | PL-999R0501-C FIND 76L1 | Cage 03950 |
| 63. | 4457353 PIECE 37L1 | Cage 43689 |
| 64. | ESNA 09NU-149 | Cage 72962 |
| 65. | 0.875-09UNC-3BNICU | Cage 81349 |
| 66. | 999F0937 FN 76 | Cage 63857 |
| 67. | PL-999F0937 FN 76 | Cage 63857 |
| 68. | 845-4687594 ITEM 24 | Cage 80064 |
| 69. | 845-7687594 ITEM 24L1 | Cage 03950 |
| 70. | 999F0937 FN 76L1 | Cage 03950 |
| 71. | PL-999F0937 FN 76L1 | Cage 03950 |
| 72. | 0.875-09UNC-3BNICUL1 | Cage 03950 |
Major End Users Countries and entities
- - Department of The Navy
Availability for 2643-820-12 ITEM 54 A member of our team will provide you with a price and availability quote
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- 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
2643-820-12 ITEM 54 / Nut,self-locking,hexagonWhat is the formal definition of this item?
A nut having a flat bottom and 6 sides. an integral feature is incorporated for locking on the threads of a mating member. excludes nut (1), self-locking, cap.
