The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-01-327-2723, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-327-2723 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Thread Series | UNJC |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Material Document and Classification | ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Pilot Diameter | 0.220 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN |
| Pilot Length | 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.173 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| M45938/8-20C | 3/2 Design control — primary reference U.S. Government activity |
| MIL-N-45938/8A | 5/9 Secondary reference U.S. Government activity |
| M45938/8-20C | 5/9 Secondary reference U.S. Government activity |
| NASM45938/8 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5310-01-327-2723 is a Nut,self-Locking,clinch, classified under FSC 5310, Nuts and Washers. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 5310-01-329-1127, 5310-01-371-0171, 5310-01-386-6043. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-327-2723: Width Across Flats: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN; Thread Series: UNJC; Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF; Material Document and Classification: ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 15 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.