The Nut,plain,round, cataloged under National Stock Number 5310-00-078-3429, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-078-3429 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Series | UN |
| Hole Configuration Style | CONFIGURATION F |
| Material Document and Classification | CVA1-513 CLA FSCM 80378 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.220 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.125 INCHES IN |
| Nut Diameter | 2.500 INCHES NOMINAL IN |
| Drive Point Depth | 0.090 INCHES NOMINAL IN |
| Nut Thickness | 0.280 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.052 INCHES NOMINAL IN |
| Countersink Angle | 110.0 DEGREES NOMINAL BOTH ENDS |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Type and Quantity | 2 DRILLED |
| 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 |
|---|---|
| 215-72445-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-078-3429 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-078-3429: Thread Series: UN; Hole Configuration Style: CONFIGURATION F; Material Document and Classification: CVA1-513 CLA FSCM 80378 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.220 INCHES NOMINAL IN. 17 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.