The Nut,self-Locking,spline, cataloged under National Stock Number 5310-01-148-2678, 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16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-148-2678 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Thread Series | UNF |
| Temp Rating | 250.0 FAHRENHEIT MAXIMUM DEGF |
| Material Document and Classification | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Diameter | 0.688 INCHES NOMINAL IN |
| Pilot Diameter | 0.509 INCHES MINIMUM AND 0.513 INCHES MAXIMUM IN |
| Pilot Length | 0.313 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.594 INCHES NOMINAL IN |
| Nut Style | SPLINE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 324 OR STEEL COMP 347 OR STEEL COMP 403 OR STEEL COMP 405 OR STEEL COMP 410 OR STEEL COMP 414 OR STEEL COMP 420 OR STEEL COMP 430 OR STEEL COMP 431 NUT |
| 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 |
|---|---|
| 522-2104954 PIECE 15 | 3/9 Design control — primary reference Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance |
NSN 5310-01-148-2678 is a Nut,self-Locking,spline, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-148-2678: Lubrication: DRY FILM LUBRICANT; Thread Series: UNF; Temp Rating: 250.0 FAHRENHEIT MAXIMUM DEGF; Material Document and Classification: QQ-S-763 FED SPEC ALL MATERIAL RESPONSES NUT. 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.