The Washer,lock, cataloged under National Stock Number 5310-01-480-0366, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-480-0366 |
| Primary Part Number | 122755A |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.713 MILLIMETERS NOMINAL MM |
| Material Thickness | 0.087 MILLIMETERS NOMINAL MM |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.402 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 122755A PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 122755A | 5/9 Secondary reference Oshkosh Corp |
NSN 5310-01-480-0366 is a Washer,lock, manufactured by Oshkosh Defense Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-480-0366 has 1 manufacturer part number on file: 122755A (Oshkosh Defense Llc).
Key specifications for 122755A: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.713 MILLIMETERS NOMINAL MM; Material Thickness: 0.087 MILLIMETERS NOMINAL MM; Special Features: NOMINAL SIZE: M10. 6 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.