The Washer,flat, cataloged under National Stock Number 5310-01-497-8456, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rolls Royce Corp. Government technical data includes 1 specification, 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. 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 | 5310-01-497-8456 |
| Primary Part Number | SP122D |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rolls Royce Corp |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| SP122D PRIMARY | Rolls Royce Corp (USA) |
NSN 5310-01-497-8456 is a Washer,flat, manufactured by Rolls Royce Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-497-8456 has 1 manufacturer part number on file: SP122D (Rolls Royce Corp).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-669-5385. Verify interchangeability with system specifications before substitution.
Key specifications for SP122D: Criticality Code Justification: AGAV; End Item Identification: KC130J AIRCRAFT ENGINE. 1 specification is 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.