The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-552-7995, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-552-7995 |
| Primary Part Number | 25097981 |
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales |
| Status | ACTIVE |
| Washer Outside Diameter | 0.790 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN |
| Width Across Flats | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Washer Thickness | 0.036 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3125 INCHES IN |
| Surface Treatment | CHROMATE ZINC OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| 25097981 | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS) |
| Reference | Meaning |
|---|---|
| 21AX761 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-552-7995 is a Nut,plain,extended Washer,hexago, manufactured by Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-552-7995 has 1 manufacturer part number on file: 25097981 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales).
Key specifications for 25097981: Overall Height: 0.318 INCHES MINIMUM AND 0.342 INCHES MAXIMUM IN; Washer Outside Diameter: 0.790 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN; Width Across Flats: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Thread Series: UNF. 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.