The Nut,plain,round, cataloged under National Stock Number 5310-01-640-6182, 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 14 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 | 5310-01-640-6182 |
| Primary Part Number | 12542311 |
| 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 | UNS |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | PER ASTM A322 CONDITION OPTIONAL ALLOY 4130-4145 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.611 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 5.106 INCHES IN |
| Nut Diameter | 6.740 INCHES MINIMUM AND 6.760 INCHES MAXIMUM IN |
| Drive Point Depth | 0.2525 INCHES NOMINAL IN |
| Nut Thickness | 1.090 INCHES MINIMUM AND 1.110 INCHES MAXIMUM IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL 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 |
|---|---|
| 12542311 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-640-6182 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 5310-01-640-6182 has 1 manufacturer part number on file: 12542311 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12542311: Thread Series: UNS; Hardness Rating: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Material Document and Classification: PER ASTM A322 CONDITION OPTIONAL ALLOY 4130-4145 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.611 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN. 14 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.