The Washer,lock, cataloged under National Stock Number 5310-01-472-3763, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-472-3763 |
| Primary Part Number | 12446954 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM B633 TYPE II,CLASS FE/ZN 5 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| Style Designator | DISHED-INTERNAL TEETH |
| Material Document and Classification | ASTM A684 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.855 INCHES NOMINAL IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.330 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 |
|---|---|
| 12446954 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-472-3763 is a Washer,lock, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-472-3763 has 1 manufacturer part number on file: 12446954 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12446954: Surface Treatment Document and Classification: ASTM B633 TYPE II,CLASS FE/ZN 5 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM; Style Designator: DISHED-INTERNAL TEETH; Material Document and Classification: ASTM A684 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 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.