The Nut,plain,round, cataloged under National Stock Number 5310-00-674-7720, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-674-7720 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Series | UNS |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| Thread Pitch Diameters | +3.0829 TO 3.0888 INCHES IN |
| Material Document and Classification | AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 3.137 INCHES IN |
| Nut Diameter | 3.520 INCHES MINIMUM AND 3.530 INCHES MAXIMUM IN |
| Drive Point Depth | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Nut Thickness | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE OVERALL |
| Countersink Angle | 90.0 DEGREES NOMINAL NUT |
| Drive Point Quantity | 22 |
| Nut Style | ROUND |
| 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 | F |
| Reference | Meaning |
|---|---|
| 327B478P3 | 3/2 Design control — primary reference U.S. Government activity |
| 327B478P3 | 5/9 Secondary reference General Electric Company |
NSN 5310-00-674-7720 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-674-7720: Thread Series: UNS; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM; Thread Pitch Diameters: +3.0829 TO 3.0888 INCHES IN; Material Document and Classification: AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 16 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.