The Washer,shouldered, cataloged under National Stock Number 5310-01-640-8454, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Shock Tech Inc Dba Shock Tech Inc. 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.
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Shock Tech Inc Dba Shock Tech Inc (CAGE 0LRN7) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-640-8454 |
| Primary Part Number | 70660-3 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Shock Tech Inc Dba Shock Tech 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 |
|---|---|
| 70660-3 PRIMARY | Shock Tech Inc Dba Shock Tech Inc (USA) |
NSN 5310-01-640-8454 is a Washer,shouldered, manufactured by Shock Tech Inc Dba Shock Tech Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-640-8454 has 1 manufacturer part number on file: 70660-3 (Shock Tech Inc Dba Shock Tech Inc).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-684-5780. 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.