The Washer,flat, cataloged under National Stock Number 5310-01-658-2922, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Naval Sea Systems Command (CAGE 53711); Huntington Ingalls Inc Div Newport News Shipbuilding (CAGE 43689) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-658-2922 |
| Primary Part Number | 600-5006054 PART NO 4 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| 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 |
|---|---|
| 600-5006054 PART NO 4 PRIMARY | Naval Sea Systems Command (USA) |
| 1203-18 PART 4 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 1203-84 PART 4 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 600-4403514 PART 4 | Naval Sea Systems Command (USA) |
| 600-5754872 PART 4 | Naval Sea Systems Command (USA) |
| 1203-62 PART 4 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 600-5754872 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5310-01-658-2922 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-658-2922 has 6 manufacturer part numbers on file: 600-5006054 PART NO 4 (Naval Sea Systems Command), 1203-18 PART 4 (Huntington Ingalls Inc Div Newport News Shipbuilding), 1203-84 PART 4 (Huntington Ingalls Inc Div Newport News Shipbuilding), 600-4403514 PART 4 (Naval Sea Systems Command), 600-5754872 PART 4 (Naval Sea Systems Command) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5365-01-658-7311. 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.