The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-00-027-9241, 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 14 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-027-9241 |
| Primary Part Number | 22LH1660-38 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Width Across Flats | 0.190 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 500.0 FAHRENHEIT NOMINAL DEGF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.099 INCHES IN |
| Pilot Diameter | 0.125 INCHES NOMINAL IN |
| Pilot Length | 0.063 INCHES NOMINAL IN |
| Locking Feature | FREE-RUNNING ALL METAL DESIGN |
| Nut Height | 0.110 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 48 |
| 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 |
|---|---|
| 22LH1660-38 | Esna, Llc (USA) |
| 5800334-6000-441 | Thales Deutschland Gmbh Div Customer Services (DEU) |
| Reference | Meaning |
|---|---|
| 22LH1660-38 | 3/9 Design control — primary reference Harvard Industries Inc |
NSN 5310-00-027-9241 is a Nut,self-Locking,clinch, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-027-9241 has 2 manufacturer part numbers on file: 22LH1660-38 (Esna, Llc), 5800334-6000-441 (Thales Deutschland Gmbh Div Customer Services).
Key specifications for 22LH1660-38: Width Across Flats: 0.190 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 500.0 FAHRENHEIT NOMINAL DEGF; Thread Direction: RIGHT-HAND. 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.