The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-00-936-4612, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-936-4612 |
| Primary Part Number | 79NCFMA1-02 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 350.0 FAHRENHEIT MAXIMUM DEGF |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | MIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT |
| Nut Counterbore Depth | 0.040 INCHES NOMINAL NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Nut Diameter | 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.210 INCHES MINIMUM AND 0.215 INCHES MAXIMUM NUT IN |
| Pilot Diameter | 0.252 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN |
| Pilot Length | 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.206 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC POLYAMIDE NYLON 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 |
|---|---|
| 79NCFMA1-02 PRIMARY | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| 79NCFMA1-02 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-936-4612 is a Nut,self-Locking,clinch, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-936-4612 has 1 manufacturer part number on file: 79NCFMA1-02 (Esna, Llc).
Key specifications for 79NCFMA1-02: Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Temp Rating: 350.0 FAHRENHEIT MAXIMUM DEGF; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE NUT; Material Document and Classification: MIL-M-20693 MIL SPEC SINGLE 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.