The Washer,flat, cataloged under National Stock Number 5310-01-512-9906, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Quality Defense Spares, Inc. Dba Quality Defense Spares Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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) |
| Manufacturers | Quality Defense Spares, Inc. Dba Quality Defense Spares Inc (CAGE 0ZSC3); Central Power Distributors, Inc. (CAGE 5PZ52); Deutz Corporation (CAGE 62445) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-512-9906 |
| Primary Part Number | 7700771180510 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Quality Defense Spares, Inc. Dba Quality Defense Spares Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 7700771180510 PRIMARY | Quality Defense Spares, Inc. Dba Quality Defense Spares Inc (USA) |
| ED0076260510-S | Central Power Distributors, Inc. (USA) |
| ED0076260510-S | Deutz Corporation (USA) |
| Reference | Meaning |
|---|---|
| ED0076260510-S | 5/9 Secondary reference Kohler Co Div Plumbing Div |
| 7700771180510 | 5/9 Secondary reference Deutz Corporation |
NSN 5310-01-512-9906 is a Washer,flat, manufactured by Quality Defense Spares, Inc. Dba Quality Defense Spares Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-512-9906 has 3 manufacturer part numbers on file: 7700771180510 (Quality Defense Spares, Inc. Dba Quality Defense Spares Inc), ED0076260510-S (Central Power Distributors, Inc.), ED0076260510-S (Deutz Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-678-2369. 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.