The Washer,flat, cataloged under National Stock Number 5310-01-353-8283, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-353-8283 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 1.230 INCHES MINIMUM AND 1.290 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Material Document and Classification | QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/4,T3,T4,T351 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/5,T3,T4,T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | ANODIZE OR CHROMATE OVERALL |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Hole Diameter | 0.755 INCHES MINIMUM AND 0.775 INCHES MAXIMUM IN |
| Thickness | 0.160 INCHES NOMINAL IN |
| 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 |
|---|---|
| NAS1401-12D5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-353-8283 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-353-8283: Width Across Flats: 1.230 INCHES MINIMUM AND 1.290 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL; Material Document and Classification: QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/4,T3,T4,T351 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/5,T3,T4,T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Special Features: RADIUS ONE SIDE OF ONE END 0.160 IN.,RADIUS ALL CORNERS 0.060 IN. IN. 7 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.