The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-00-047-2138, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-047-2138 |
| Primary Part Number | F7201-3 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Thread Series | UNF |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Nut Diameter | 0.432 INCHES MINIMUM AND 0.462 INCHES MAXIMUM IN |
| Pilot Diameter | 0.368 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Pilot Length | 0.050 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.260 INCHES NOMINAL IN |
| Nut Style | CLINCH |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 630 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 |
|---|---|
| F7201-3 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 310D241-1 | 5/9 Secondary reference Bfm Energy Products Corp |
| FPN 10-32-SUULM | 5/2 Secondary reference U.S. Government activity |
| E7201-3 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 7728497-24 | 5/9 Secondary reference U.S. Government activity |
| FPN10-32SFL | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-047-2138 is a Nut,self-Locking,clinch, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-047-2138 has 1 manufacturer part number on file: F7201-3 (Howmet Global Fastening Systems Inc).
Key specifications for F7201-3: Lubrication: DRY FILM LUBRICANT; Thread Series: UNF; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM; Material Document and Classification: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.