The Nut,plain,round, cataloged under National Stock Number 5310-00-548-6100, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-548-6100 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Series | UN |
| Material Document and Classification | EMS 56627 FSCM 99193 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM NUT IN |
| Drive Point Width | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.938 INCHES IN |
| Nut Diameter | 1.220 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.950 INCHES MINIMUM AND 0.970 INCHES MAXIMUM NUT IN |
| Nut Thickness | 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 90.0 DEGREES MAXIMUM NUT |
| Drive Point Quantity | 3 |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| 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 |
| Reference | Meaning |
|---|---|
| 365220-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-548-6100 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-548-6100: Thread Series: UN; Material Document and Classification: EMS 56627 FSCM 99193 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Nut Counterbore Depth: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM NUT IN; Drive Point Width: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN. 14 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.