The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-693-2296, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-693-2296 |
| Primary Part Number | KFN517DL-7 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Width Across Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| Nut Counterbore Depth | 0.132 INCHES MINIMUM AND 0.142 INCHES MAXIMUM WASHER IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.4375 INCHES IN |
| Counterbore Diameter | 0.472 INCHES MINIMUM AND 0.476 INCHES MAXIMUM BASE IN |
| Locking Feature | SELF-LOCKING |
| Nut Height | 0.565 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 630 OVERALL |
| Bearing Surface Type | WASHER FACED |
| 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 |
|---|---|
| KFN517DL-7 | Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA) |
| KFN517DL-7 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
NSN 5310-01-693-2296 is a Nut,self-Locking,hexagon, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-693-2296 has 2 manufacturer part numbers on file: KFN517DL-7 (Leonardo Spa Aeronautics Division - Pomigliano D'arco Site), KFN517DL-7 (Howmet Global Fastening Systems Inc).
Key specifications for KFN517DL-7: Lubrication: DRY FILM LUBRICANT; Width Across Flats: 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Temp Rating: 450.0 FAHRENHEIT MAXIMUM 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.