The Nut,plain,round, cataloged under National Stock Number 5310-01-073-7902, 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 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-073-7902 |
| Primary Part Number | 12286190 |
| 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 | 34.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM |
| Drive Point Width | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.767 INCHES IN |
| Nut Diameter | 2.105 INCHES NOMINAL IN |
| Drive Point Depth | 0.060 INCHES NOMINAL IN |
| Nut Thickness | 0.850 INCHES NOMINAL IN |
| Drive Point Quantity | 8 |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 4140 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 |
|---|---|
| 12286190 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 3-100-144-10 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-073-7902 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 5310-01-073-7902 has 1 manufacturer part number on file: 12286190 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12286190: Thread Series: UNS; Hardness Rating: 34.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM; Drive Point Width: 0.250 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 13 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.