The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-01-397-6856, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Grimes Aerospace Company. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-397-6856 |
| Primary Part Number | SN-074 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416, TY 2, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNJC |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.112 INCHES IN |
| Nut Diameter | 0.223 INCHES MAXIMUM IN |
| Pilot Diameter | 0.158 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN |
| Pilot Length | 0.035 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.159 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 40 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| F22LHCFM1-40 | Esna, Llc (USA) |
| K7000-04-4CW | Howmet Global Fastening Systems Inc (USA) |
| SN-074 PRIMARY | Grimes Aerospace Company (USA) |
| Reference | Meaning |
|---|---|
| F22LHCFM1-40 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-397-6856 is a Nut,self-Locking,clinch, manufactured by Grimes Aerospace Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-397-6856 has 3 manufacturer part numbers on file: F22LHCFM1-40 (Esna, Llc), K7000-04-4CW (Howmet Global Fastening Systems Inc), SN-074 (Grimes Aerospace Company).
Key specifications for SN-074: Surface Treatment Document and Classification: QQ-P-416, TY 2, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNJC; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.112 INCHES IN. 14 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.