The Washer,concave, cataloged under National Stock Number 5310-01-510-9957, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Reid Supply Company. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Washer,concave |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Reid Supply Company (CAGE 01599) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-510-9957 |
| Primary Part Number | SPW-5 |
| Item Name | Washer,concave |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Reid Supply Company |
| 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 |
|---|---|
| SPW-5 PRIMARY | Reid Supply Company (USA) |
| Reference | Meaning |
|---|---|
| 13066233 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 5310-01-510-9957 is a Washer,concave, manufactured by Reid Supply Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-510-9957 has 1 manufacturer part number on file: SPW-5 (Reid Supply Company).
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.