The Nut,plain,round, cataloged under National Stock Number 5310-01-275-7491, 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 12 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 | 5310-01-275-7491 |
| Primary Part Number | 12313486 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-A-200/4,H111 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/5,H111 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.172 INCHES MINIMUM AND 0.232 INCHES MAXIMUM FIRST END IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.562 INCHES IN |
| Nut Diameter | 1.000 INCHES NOMINAL IN |
| Counterbore Diameter | 0.591 INCHES MINIMUM AND 0.604 INCHES MAXIMUM FIRST END IN |
| Nut Thickness | 0.750 INCHES NOMINAL IN |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 12 |
| Material | ALUMINUM ALLOY 5083 OR ALUMINUM ALLOY 5086 OVERALL |
| 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 |
|---|---|
| 12313486 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-275-7491 is a Nut,plain,round, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-275-7491 has 1 manufacturer part number on file: 12313486 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12313486: Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-A-200/4,H111 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/5,H111 FED SPEC 2ND MATERIAL RESPONSE OVERALL; Nut Counterbore Depth: 0.172 INCHES MINIMUM AND 0.232 INCHES MAXIMUM FIRST END IN; Thread Direction: RIGHT-HAND. 12 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.