The Washer,flat, cataloged under National Stock Number 5310-01-624-3587, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-624-3587 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 0.688 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | CLEAN,PRETREAT,PRIME AND PAINT IAW 17-3-3208 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | ASTM A240 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Color | TAN OVERALL |
| Surface Treatment | PRIMER AND PAINT OVERALL |
| Peripheral Shape Style | SQUARE |
| Material | STEEL COMP 304 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.260 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN |
| Thickness | 0.090 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 |
|---|---|
| 17-3-3799-2 | 3/2 Design control — primary reference U.S. Government activity |
| 17-3-3799 | D/9 Drawing number reference only U.S. Government activity |
NSN 5310-01-624-3587 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-624-3587: Width Across Flats: 0.688 INCHES NOMINAL IN; Surface Treatment Document and Classification: CLEAN,PRETREAT,PRIME AND PAINT IAW 17-3-3208 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: ASTM A240 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 11 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.