The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-00-936-3012, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-936-3012 |
| Primary Part Number | 79NC4-048 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Width Across Flats | 0.438 INCHES NOMINAL IN |
| Thread Series | UNF |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Material Document and Classification | AISI ASSN STD 1ST MATERIAL RESPONSE OR MIL-M-20683 MIL SPEC 2ND MATERIAL RESPONSE LOCKING INSERT |
| Nut Counterbore Depth | 0.135 INCHES NOMINAL NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Counterbore Diameter | 0.280 INCHES NOMINAL NUT IN |
| Pilot Diameter | 0.357 INCHES MINIMUM AND 0.361 INCHES MAXIMUM IN |
| Pilot Length | 0.129 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.442 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE NUT |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | PLASTIC POLYHEXAMETHYLENE AMIDE OR PLASTIC POLYCAPROLACTAM LOCKING INSERT |
| Material | STEEL COMP 303 NUT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 79NC4-048 PRIMARY | Esna, Llc (USA) |
| 79NC4-048 PRIMARY | Abbott-Interfast Corp. (USA) |
| L79NC4-428 PRIMARY | Greer Stop Nut, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 79NC4-048 | 5/9 Secondary reference Harvard Industries Inc |
| 532362-2504 | 7/2 Vendor item drawing reference U.S. Government activity |
| 9176317-2 | 5/9 Secondary reference Us Army Aviation and Missile Command |
NSN 5310-00-936-3012 is a Nut,self-Locking,clinch, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-936-3012 has 3 manufacturer part numbers on file: 79NC4-048 (Esna, Llc), 79NC4-048 (Abbott-Interfast Corp.), L79NC4-428 (Greer Stop Nut, Inc.).
Key specifications for 79NC4-048: Width Across Flats: 0.438 INCHES NOMINAL IN; Thread Series: UNF; Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF; Material Document and Classification: AISI ASSN STD 1ST MATERIAL RESPONSE OR MIL-M-20683 MIL SPEC 2ND MATERIAL RESPONSE LOCKING INSERT. 18 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.