The Nut,plain,round, cataloged under National Stock Number 5310-01-124-5249, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-124-5249 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Series | UNS |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| Thread Pitch Diameters | +0.7607 TO 0.7643 INCHES IN |
| Material Document and Classification | MIL-S-6758,COND D MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.781 INCHES IN |
| Nut Diameter | 1.062 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN |
| Specification/standard Data | 80205-NAS1493 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Drive Point Depth | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Undercut Thickness | 0.100 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Nut Thickness | 0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Small End Diameter | 0.975 INCHES MINIMUM AND 0.980 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Countersink Angle | 89.5 DEGREES MINIMUM AND 90.5 DEGREES MAXIMUM NUT |
| Drive Point Quantity | 8 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4130 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| NAS1493-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-124-5249 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-124-5249: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Series: UNS; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM; Thread Pitch Diameters: +0.7607 TO 0.7643 INCHES IN. 20 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.