The Washer,lock, cataloged under National Stock Number 5310-01-374-4514, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Triumph Controls, Llc Dba Triumph Controls, Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-374-4514 |
| Primary Part Number | 57477-16 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Triumph Controls, Llc Dba Triumph Controls, Llc |
| Status | ACTIVE |
| Outside Diameter | 0.683 INCHES NOMINAL IN |
| Material Thickness | 0.099 INCHES NOMINAL IN |
| Material | STEEL COMP 302 OVERALL |
| Hole Diameter | 0.390 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 |
|---|---|
| 57477-16 PRIMARY | Triumph Controls, Llc Dba Triumph Controls, Llc (USA) |
| Reference | Meaning |
|---|---|
| POD-57477 ITEM 57477-16 | 5/9 Secondary reference Triumph Controls, Llc Dba Triumph Controls, Llc |
NSN 5310-01-374-4514 is a Washer,lock, manufactured by Triumph Controls, Llc Dba Triumph Controls, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-374-4514 has 1 manufacturer part number on file: 57477-16 (Triumph Controls, Llc Dba Triumph Controls, Llc).
Key specifications for 57477-16: Outside Diameter: 0.683 INCHES NOMINAL IN; Material Thickness: 0.099 INCHES NOMINAL IN; Material: STEEL COMP 302 OVERALL; Hole Diameter: 0.390 INCHES NOMINAL IN. 4 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.