The Washer,lock, cataloged under National Stock Number 5310-01-558-7726, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mack Boring & Parts Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-558-7726 |
| Primary Part Number | 9-09150-508-0 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mack Boring & Parts Co |
| 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 |
|---|---|
| 9-09150-508-0 PRIMARY | Mack Boring & Parts Co (USA) |
NSN 5310-01-558-7726 is a Washer,lock, manufactured by Mack Boring & Parts Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-558-7726 has 1 manufacturer part number on file: 9-09150-508-0 (Mack Boring & Parts Co).
Key specifications for 9-09150-508-0: Special Features: QUANTITY REQUIRED 2; Part Name Assigned by Controlling Agency: LOCK WASHER. 0 specifications are 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.