The Washer,lock, cataloged under National Stock Number 5310-01-533-5244, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Wurth Industry Usa Inc. Dba Wurth Revcar Fasteners, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-533-5244 |
| Primary Part Number | 31NLOCZ |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Wurth Industry Usa Inc. Dba Wurth Revcar Fasteners, Inc. |
| Status | ACTIVE |
| Outside Diameter | 0.312 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 31NLOCZ | Wurth Industry Usa Inc. Dba Wurth Revcar Fasteners, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3000395-208 | 3/9 Design control — primary reference Hdt Tactical Power, Inc. |
| 3000395-208 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-533-5244 is a Washer,lock, manufactured by Wurth Industry Usa Inc. Dba Wurth Revcar Fasteners, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-533-5244 has 1 manufacturer part number on file: 31NLOCZ (Wurth Industry Usa Inc. Dba Wurth Revcar Fasteners, Inc.).
Key specifications for 31NLOCZ: Outside Diameter: 0.312 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: MED SPLIT LOCKWASHER; Material: STEEL OVERALL. 2 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.