The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-431-1403, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Motor City Fasteners Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-431-1403 |
| Primary Part Number | 901629 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Motor City Fasteners Inc |
| Status | ACTIVE |
| Width Across Flats | 0.861 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.562 INCHES IN |
| Nut Height | 0.473 INCHES MINIMUM AND 0.496 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 901629 PRIMARY | Motor City Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| 901629 | 5/9 Secondary reference Allied Automotive Allied Aftermarket Div |
NSN 5310-01-431-1403 is a Nut,plain,hexagon, manufactured by Motor City Fasteners Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-431-1403 has 1 manufacturer part number on file: 901629 (Motor City Fasteners Inc).
Key specifications for 901629: Width Across Flats: 0.861 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.562 INCHES IN. 10 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.