The Nut,plain,assembled Washer, cataloged under National Stock Number 5310-01-283-4238, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-283-4238 |
| Item Name | Nut,plain,assembled Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Washer Outside Diameter | 0.885 INCHES MINIMUM AND 0.885 INCHES MINIMUM AND 0.915 INCHES MAXIMUM0.915 INCHES MAXIMUM IN |
| Width Across Flats | 0.551 INCHES MINIMUM AND 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM0.562 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES0.375 INCHES IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | PLAIN DISHED |
| Thread Class | 2B |
| Thread Quantity Per Inch | 1616 |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 22 LFFL 3816 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-283-4238 is a Nut,plain,assembled Washer, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-283-4238: Overall Height: 0.390 INCHES MINIMUM AND 0.390 INCHES MINIMUM AND 0.406 INCHES MAXIMUM0.406 INCHES MAXIMUM IN; Washer Outside Diameter: 0.885 INCHES MINIMUM AND 0.885 INCHES MINIMUM AND 0.915 INCHES MAXIMUM0.915 INCHES MAXIMUM IN; Width Across Flats: 0.551 INCHES MINIMUM AND 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM0.562 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC). 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.