The Washer,lock, cataloged under National Stock Number 5310-01-616-3704, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Nord-Lock Ltd. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-616-3704 |
| Primary Part Number | NL12SPSS-254 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Nord-Lock Ltd |
| Status | ACTIVE |
| Outside Diameter | 25.4 MILLIMETERS NOMINAL MM |
| Major Thickness | 3.0 MILLIMETERS NOMINAL MM |
| Color | NATURAL OVERALL |
| Hole Diameter | 13.0 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 |
|---|---|
| NL12SPSS-254 | Nord-Lock Ltd (GBR) |
| GD00653785 | General Dynamics United Kingdom Ltd (GBR) |
| 1017830 | General Dynamics United Kingdom Ltd (GBR) |
| Reference | Meaning |
|---|---|
| NL12SPSS-254 | 3/9 Design control — primary reference Nord Lock Inc |
NSN 5310-01-616-3704 is a Washer,lock, manufactured by Nord-Lock Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-616-3704 has 3 manufacturer part numbers on file: NL12SPSS-254 (Nord-Lock Ltd), GD00653785 (General Dynamics United Kingdom Ltd), 1017830 (General Dynamics United Kingdom Ltd).
Key specifications for NL12SPSS-254: Outside Diameter: 25.4 MILLIMETERS NOMINAL MM; Major Thickness: 3.0 MILLIMETERS NOMINAL MM; Color: NATURAL OVERALL; Special Features: MAT: AUSTENITIC STAINLESS STEEL. 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.