The Nut,plain,round, cataloged under National Stock Number 5310-00-285-9324, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-285-9324 |
| Primary Part Number | 6729637 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Thread Series | UN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.125 INCHES IN |
| Nut Diameter | 2.959 INCHES MINIMUM AND 2.979 INCHES MAXIMUM IN |
| Drive Point Depth | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Nut Thickness | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE OVERALL |
| Countersink Angle | 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM NUT |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 4340 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-00-285-9324 is a Nut,plain,round, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-285-9324 has 2 manufacturer part numbers on file: 6729637 (Allison Transmission Inc Dba Allison Transmission, Inc), 6729637 (General Motors Corp).
Key specifications for 6729637: Thread Series: UN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Material Document and Classification: AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.