The Washer,flat, cataloged under National Stock Number 5310-01-533-5440, 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 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-533-5440 |
| Primary Part Number | 50NWUSOZ/GR5 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Wurth Industry Usa Inc. Dba Wurth Revcar Fasteners, Inc. |
| Status | ACTIVE |
| Overall Diameter | 1.375 INCHES NOMINAL IN |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 50NWUSOZ/GR5 | Wurth Industry Usa Inc. Dba Wurth Revcar Fasteners, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3000396-311 | 3/9 Design control — primary reference Hdt Tactical Power, Inc. |
| 3000396-311 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-533-5440 is a Washer,flat, manufactured by Wurth Industry Usa Inc. Dba Wurth Revcar Fasteners, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-533-5440 has 1 manufacturer part number on file: 50NWUSOZ/GR5 (Wurth Industry Usa Inc. Dba Wurth Revcar Fasteners, Inc.).
Key specifications for 50NWUSOZ/GR5: Overall Diameter: 1.375 INCHES NOMINAL IN; Peripheral Shape Style: ROUND; Material: STEEL CORROSION RESISTING OVERALL; Center Hole Shape Style: ROUND. 5 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.