The Washer,keyway, cataloged under National Stock Number 5310-01-648-9573, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Saint Technologies Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Washer,keyway |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Saint Technologies Inc (CAGE 60198) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-648-9573 |
| Primary Part Number | RL9-Z053 |
| Item Name | Washer,keyway |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Saint Technologies Inc |
| 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 |
|---|---|
| RL9-Z053 PRIMARY | Saint Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| JSFW10G | 1/2 Source control — Government-approved source U.S. Government activity |
| JSFW10 | D/9 Drawing number reference only U.S. Government activity |
NSN 5310-01-648-9573 is a Washer,keyway, manufactured by Saint Technologies Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-648-9573 has 1 manufacturer part number on file: RL9-Z053 (Saint Technologies Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-648-9580. 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.