The Washer,key, cataloged under National Stock Number 5310-00-736-4143, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-736-4143 |
| Primary Part Number | 7364143 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633,TYPE 2,CLASS 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| Distance From Centerline to Inside of Prebent Key | 2.965 INCHES MINIMUM AND 2.975 INCHES MAXIMUM IN |
| Internal Prebent Key Angle | 90.0 DEGREES NOMINAL |
| External Prebent Key Length | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 6.365 INCHES MINIMUM AND 6.385 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL |
| External Prebent Key Width | 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 3.995 INCHES MINIMUM AND 4.005 INCHES MAXIMUM 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 |
|---|---|
| 7364143 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5310007364143 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5310-00-736-4143 is a Washer,key, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-736-4143 has 1 manufacturer part number on file: 7364143 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7364143: Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633,TYPE 2,CLASS 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL; Distance From Centerline to Inside of Prebent Key: 2.965 INCHES MINIMUM AND 2.975 INCHES MAXIMUM IN; Internal Prebent Key Angle: 90.0 DEGREES NOMINAL; External Prebent Key Length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN. 10 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.