The Washer,lock, cataloged under National Stock Number 5310-01-276-4891, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bossard Intl Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-276-4891 |
| Primary Part Number | B25DIN127NRST |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bossard Intl Inc |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Material Document and Classification | DIN17224 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 3.1 MILLIMETERS NOMINAL MM |
| Material Thickness | 0.6 MILLIMETERS NOMINAL MM |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 2.6 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 |
|---|---|
| B25DIN127NRST PRIMARY | Bossard Intl Inc (USA) |
| Reference | Meaning |
|---|---|
| 12348296-3 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5310-01-276-4891 is a Washer,lock, manufactured by Bossard Intl Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-276-4891 has 1 manufacturer part number on file: B25DIN127NRST (Bossard Intl Inc).
Key specifications for B25DIN127NRST: Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: DIN17224 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 3.1 MILLIMETERS NOMINAL MM; Material Thickness: 0.6 MILLIMETERS NOMINAL MM. 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.