The Nut,plain,round, cataloged under National Stock Number 5310-01-074-3692, 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 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-074-3692 |
| Primary Part Number | 12271182 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Width Across Flats | 2.210 INCHES NOMINAL IN |
| Thread Series | UNS |
| Hardness Rating | 37.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.312 INCHES IN |
| Nut Diameter | 2.835 INCHES NOMINAL IN |
| Nut Thickness | 0.860 INCHES MINIMUM AND 0.868 INCHES MAXIMUM IN |
| Nut Style | ROUND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4340 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 |
|---|---|
| 12271182 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12271182 | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| 3-141-003-06 | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| Reference | Meaning |
|---|---|
| 12286581 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 3-141-003-06 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-074-3692 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 5310-01-074-3692 has 3 manufacturer part numbers on file: 12271182 (U S Army Tank Automotive Command Amsta-Im-Mm), 12271182 (Aero International, Llc Dba Ams Engineered Solutions), 3-141-003-06 (Aero International, Llc Dba Ams Engineered Solutions).
Key specifications for 12271182: Width Across Flats: 2.210 INCHES NOMINAL IN; Thread Series: UNS; Hardness Rating: 37.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM; Thread Direction: RIGHT-HAND. 11 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.