The Washer,flat, cataloged under National Stock Number 5310-01-087-2541, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-087-2541 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416A,TY1 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-P-416A,TY2 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR AMS 2400C ASSN STD SINGLE TREATMENT RESPONSE OR MIL-C-8837,TY1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OR PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.199 INCHES NOMINAL IN |
| Thickness | 0.030 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 |
|---|---|
| 1406 | 5/9 Secondary reference Federal Screw Products, Inc. |
| 1406ADX | 5/9 Secondary reference Airdale Express Llc Div Airdale Express |
| 701-0025-0008 | 3/9 Design control — primary reference Beehive Intl |
NSN 5310-01-087-2541 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-087-2541: Surface Treatment Document and Classification: QQ-P-416A,TY1 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-P-416A,TY2 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR AMS 2400C ASSN STD SINGLE TREATMENT RESPONSE OR MIL-C-8837,TY1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A; Overall Diameter: 0.375 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: CADMIUM OR PASSIVATE OVERALL. 9 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.