The Washer,flat, cataloged under National Stock Number 5310-00-045-5225, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-045-5225 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 2.000 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Nondefinitive Spec/std Data | A TYPE AND 1 GRADE AND B CLASS |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE FILM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | COPPER OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.062 INCHES NOMINAL IN |
| Thickness | 0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM 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 |
|---|---|
| 122-1096415 PC 35 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MS15795-926 | 5/9 Secondary reference U.S. Government activity |
| MS15795-926 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-045-5225 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-045-5225: Overall Diameter: 2.000 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Nondefinitive Spec/std Data: A TYPE AND 1 GRADE AND B CLASS; Color: BLACK OVERALL. 10 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.