The Washer,flat, cataloged under National Stock Number 5310-01-485-8092, 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. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5310-01-485-8092 |
| Primary Part Number | 122-6938615 PC 57 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | SAEJ403,C1006 ASSN STD 1ST TREATMENT RESPONSE OR SAEJ403,C1015 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.812 INCHES NOMINAL IN |
| Hardness Rating | 49.0 ROCKWELL B NOMINAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1006 OR STEEL COMP 1015 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.406 INCHES NOMINAL IN |
| Thickness | 0.051 INCHES MINIMUM AND 0.080 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 |
| Part Number | Manufacturer |
|---|---|
| 122-6938615 PC 57 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 90126A031 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 122-6938615 PC 57 | 3/9 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5310-01-485-8092 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-485-8092 has 1 manufacturer part number on file: 122-6938615 PC 57 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-505-7694. Verify interchangeability with system specifications before substitution.
Key specifications for 122-6938615 PC 57: Surface Treatment Document and Classification: SAEJ403,C1006 ASSN STD 1ST TREATMENT RESPONSE OR SAEJ403,C1015 ASSN STD 2ND TREATMENT RESPONSE OVERALL; Overall Diameter: 0.812 INCHES NOMINAL IN; Hardness Rating: 49.0 ROCKWELL B NOMINAL; Cross-Sectional Shape Style: RECTANGULAR. 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.