The Washer,flat, cataloged under National Stock Number 5310-01-612-5149, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-612-5149 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| 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 |
|---|---|
| AEW23X04N000BD89B1 | 5/9 Secondary reference The American Society of Mechanical Engineers |
| AEW23X04N000GF32C1 | 5/9 Secondary reference U.S. Government activity |
| AEW23X04N000BD82C1 | 2/2 Government specification standardization U.S. Government activity |
| G1922BH040N | 5/1 Secondary reference General Dynamics Land Systems Inc. |
| G1922M | D/9 Drawing number reference only General Dynamics Land Systems Inc. |
NSN 5310-01-612-5149 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5310-01-616-1514. Verify interchangeability with system specifications before substitution.
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.