The Nut,plain,internal Wrenching, cataloged under National Stock Number 5310-00-431-6774, 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16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-431-6774 |
| Item Name | Nut,plain,internal Wrenching |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Spline Minor Diameter | 0.312 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Spline Width | 0.125 INCHES NOMINAL IN |
| Thread Series | UNF |
| Spline Major Diameter | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Nut Diameter | 0.562 INCHES NOMINAL IN |
| Spline Quantity | 8 |
| Nut Height | 0.431 INCHES MINIMUM AND 0.451 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | MULTIPLE SPLINE |
| Nut Style | INTERNAL WRENCHING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 303 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 |
|---|---|
| 2637506PC3 | 3/2 Design control — primary reference U.S. Government activity |
| 2637506PC3 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5310-00-431-6774 is a Nut,plain,internal Wrenching, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-431-6774: Spline Minor Diameter: 0.312 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Spline Width: 0.125 INCHES NOMINAL IN; Thread Series: UNF. 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.