The Washer,flat, cataloged under National Stock Number 5310-01-528-8351, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Auburn Gear Inc Dba Auburn Gear. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-528-8351 |
| Primary Part Number | 604703 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Auburn Gear Inc Dba Auburn Gear |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 604703 PRIMARY | Auburn Gear Inc Dba Auburn Gear (USA) |
NSN 5310-01-528-8351 is a Washer,flat, manufactured by Auburn Gear Inc Dba Auburn Gear, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-528-8351 has 1 manufacturer part number on file: 604703 (Auburn Gear Inc Dba Auburn Gear).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-619-8406. Verify interchangeability with system specifications before substitution.
Key specifications for 604703: End Item Identification: NSN 1925-01-509-7013 TUGBOAT. 0 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.