The Washer,lock, cataloged under National Stock Number 5310-01-321-4932, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Din Deutsches Institut Fur Normung Ev. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-321-4932 |
| Primary Part Number | DIN7980-8-FST |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Din Deutsches Institut Fur Normung Ev |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 12.7 MILLIMETERS MAXIMUM MM |
| Material Thickness | 1.9 MILLIMETERS MINIMUM AND 2.1 MILLIMETERS MAXIMUM MM |
| Color | BLACK OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 8.1 MILLIMETERS MINIMUM AND 8.5 MILLIMETERS MAXIMUM 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 |
|---|---|
| DIN7980-8-FST | Din Deutsches Institut Fur Normung Ev (DEU) |
| Reference | Meaning |
|---|---|
| 5158100 | 3/9 Design control — primary reference Itt Marlow a Unit of Itt Pumps and Compressors Div |
NSN 5310-01-321-4932 is a Washer,lock, manufactured by Din Deutsches Institut Fur Normung Ev, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-321-4932 has 1 manufacturer part number on file: DIN7980-8-FST (Din Deutsches Institut Fur Normung Ev).
Key specifications for DIN7980-8-FST: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 12.7 MILLIMETERS MAXIMUM MM; Material Thickness: 1.9 MILLIMETERS MINIMUM AND 2.1 MILLIMETERS MAXIMUM MM; Color: BLACK OVERALL. 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.