The Washer,flat, cataloged under National Stock Number 5310-01-481-7486, 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11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-481-7486 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES ALL SURFACES |
| Surface Treatment Document and Classification | QQ-P-35,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.130 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5643,TYPE 17-4 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5659,TYPE 15-5 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 630 OR STEEL COMP XM-12 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.390 INCHES NOMINAL 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 |
|---|---|
| 121107-1 | 3/2 Design control — primary reference U.S. Government activity |
| 121107 | D/9 Drawing number reference only U.S. Government activity |
NSN 5310-01-481-7486 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5310-01-481-7490, 1650-01-663-5549, 4730-01-664-0340. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-481-7486: Surface Finish: 125.0 MICROINCHES ALL SURFACES; Surface Treatment Document and Classification: QQ-P-35,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 1.130 INCHES NOMINAL IN; Material Document and Classification: AMS 5643,TYPE 17-4 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5659,TYPE 15-5 ASSN STD 2ND MATERIAL RESPONSE OVERALL. 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.