The Washer,lock, cataloged under National Stock Number 5310-01-664-9989, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Brighton-Best International Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Washer,lock |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Brighton-Best International Inc (CAGE 5YWZ2); Fastenal Company Dba Fastenal Co (CAGE 0Y3H3); Neeltran, Inc. (CAGE 0A7R9) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-664-9989 |
| Primary Part Number | 050-000026-005 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Brighton-Best International 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 |
|---|---|
| 050-000026-005 PRIMARY | Brighton-Best International Inc (USA) |
| 0123492 | Fastenal Company Dba Fastenal Co (USA) |
| 050-000026-005 | Neeltran, Inc. (USA) |
NSN 5310-01-664-9989 is a Washer,lock, manufactured by Brighton-Best International Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-664-9989 has 3 manufacturer part numbers on file: 050-000026-005 (Brighton-Best International Inc), 0123492 (Fastenal Company Dba Fastenal Co), 050-000026-005 (Neeltran, Inc.).
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.