The Nut,plain,round, cataloged under National Stock Number 5310-01-073-7905, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmellon Bros., Incorporated Dba Mc Mellon Brothers Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-073-7905 |
| Primary Part Number | 3-110-033-02 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmellon Bros., Incorporated Dba Mc Mellon Brothers Inc |
| Status | ACTIVE |
| Thread Series | UNJS |
| Drive Point Width | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.731 INCHES IN |
| Nut Diameter | 1.973 INCHES MINIMUM AND 1.977 INCHES MAXIMUM IN |
| Drive Point Depth | 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Nut Thickness | 0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN |
| Drive Point Quantity | 8 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 18 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 12286345 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 3-110-033-02 PRIMARY | Mcmellon Bros., Incorporated Dba Mc Mellon Brothers Inc (USA) |
| Reference | Meaning |
|---|---|
| 3-110-033-02 | 5/2 Secondary reference U.S. Government activity |
| 3-110-033-02 | 5/9 Secondary reference Valco Mfg and Engineering Co |
NSN 5310-01-073-7905 is a Nut,plain,round, manufactured by Mcmellon Bros., Incorporated Dba Mc Mellon Brothers Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-073-7905 has 2 manufacturer part numbers on file: 12286345 (U S Army Tank Automotive Command Amsta-Im-Mm), 3-110-033-02 (Mcmellon Bros., Incorporated Dba Mc Mellon Brothers Inc).
Key specifications for 3-110-033-02: Thread Series: UNJS; Drive Point Width: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.731 INCHES IN. 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.