The Washer,flat, cataloged under National Stock Number 5310-00-231-4252, 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9 specifications, cited from the U.S. Government catalog. 20 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-231-4252 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 1.000 INCHES NOMINAL IN |
| Material Document and Classification | MIL-P-20085 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Minimum Tensile Strength | 2 POUNDS PER SQUARE INCH LBS |
| Peripheral Shape Style | ROUND |
| Material | CELLULOSE OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.562 INCHES NOMINAL IN |
| Thickness | 0.062 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 |
|---|---|
| 8412PC71 | 5/9 Secondary reference Cooper Industries Industrial Machinery Div |
| 375910PCX4 | 3/2 Design control — primary reference U.S. Government activity |
| 25950PCX4 | 3/2 Design control — primary reference U.S. Government activity |
| 389886PC110 | 3/2 Design control — primary reference U.S. Government activity |
| 4801-70365PC71 | 3/2 Design control — primary reference U.S. Government activity |
| 8404PC71 | 5/9 Secondary reference Cooper Industries Inc Dba Cooper Tools |
| 1762-381PC71 | 3/2 Design control — primary reference U.S. Government activity |
| 7504PC110 | 5/9 Secondary reference Cooper Industries Inc Dba Cooper Tools |
| 8403PC71 | 5/9 Secondary reference Cooper Industries Inc Dba Cooper Tools |
| 8403PC71 | 5/9 Secondary reference Cooper Industries Industrial Machinery Div |
| 8404PC71 | 5/9 Secondary reference Cooper Industries Industrial Machinery Div |
| 7503PC110 | 5/9 Secondary reference Cooper Industries Inc Dba Cooper Tools |
| 4801-70364ALTP2PC71 | 3/2 Design control — primary reference U.S. Government activity |
| 4801-70373ALTP1PC71 | 3/2 Design control — primary reference U.S. Government activity |
| 7503PC110 | 5/9 Secondary reference Cooper Industries Industrial Machinery Div |
| 7504PC110 | 5/9 Secondary reference Cooper Industries Industrial Machinery Div |
| 2065-112PCX4 | 5/9 Secondary reference U.S. Government activity |
| 1770-381PC71 | 3/2 Design control — primary reference U.S. Government activity |
| 8412PC71 | 5/9 Secondary reference Cooper Industries Inc Dba Cooper Tools |
| 1761-381PC71 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-231-4252 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-231-4252: Overall Diameter: 1.000 INCHES NOMINAL IN; Material Document and Classification: MIL-P-20085 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Minimum Tensile Strength: 2 POUNDS PER SQUARE INCH LBS. 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.