The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-00-596-6462, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc. Government technical data includes 16 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-596-6462 |
| Primary Part Number | 6401-53 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.112 INCHES IN |
| Pilot Diameter | 0.187 INCHES MINIMUM AND 0.191 INCHES MAXIMUM IN |
| Pilot Length | 0.099 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.246 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL EXCEPT INSERT |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 40 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | STEEL COMP 303 OR ALUMINUM ALLOY 2017 OVERALL EXCEPT INSERT |
| 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 |
|---|---|
| 6401-53 PRIMARY | Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc (USA) |
| Reference | Meaning |
|---|---|
| 6401-53 | 5/9 Secondary reference North American Philips Corp |
| 410976-403 | 5/9 Secondary reference U.S. Government activity |
| 68NC3-40 | 5/9 Secondary reference Harvard Industries Inc |
| 6401-53 | 5/9 Secondary reference U.S. Government activity |
| 9175044 | 5/9 Secondary reference Us Army Aviation and Missile Command |
| 333-0199-000 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-596-6462 is a Nut,self-Locking,clinch, manufactured by Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-596-6462 has 1 manufacturer part number on file: 6401-53 (Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc).
2 possible matches (shared part number, not a government interchangeability claim): 2920-00-621-6336, 3040-00-704-9152. Verify interchangeability with system specifications before substitution.
Key specifications for 6401-53: Width Across Flats: 0.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF. 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.