The Nut,plain,cap, cataloged under National Stock Number 5310-00-655-9593, 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 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-655-9593 |
| Primary Part Number | 7340055 |
| Item Name | Nut,plain,cap |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Width Across Flats | 1.110 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN |
| Bearing Surface Finish | 50.0 MICROINCHES |
| Surface Treatment Document and Classification | QQ-P-416 TY 1 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 TY 2 CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Hole Configuration Style | CONFIGURATION B |
| Material Document and Classification | QQ-S-637 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A108 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Nut Height | 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| Drilled Hole Diameter | 0.078 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR ZINC AND CHROMATE OVERALL |
| Nut Style | CAP |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1212 OR STEEL COMP 1020 OR STEEL COMP 1022 OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Hole Type and Quantity | 3 DRILLED |
| 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 |
|---|---|
| 7340055 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5310006559593 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5310-00-655-9593 is a Nut,plain,cap, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-655-9593 has 1 manufacturer part number on file: 7340055 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7340055: Width Across Flats: 1.110 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN; Bearing Surface Finish: 50.0 MICROINCHES; Surface Treatment Document and Classification: QQ-P-416 TY 1 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 TY 2 CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Series: UNF. 17 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.