The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-927-7845, 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 13 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-927-7845 |
| Primary Part Number | KFN530-7 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | SOLUBLE LUBRICANT |
| Washer Outside Diameter | 0.705 INCHES MAXIMUM IN |
| Width Across Flats | 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Temp Rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.438 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| C2950-14 | Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems (USA) |
| C2950-14 | Howmet Global Fastening Systems Inc (USA) |
| KFN530-7 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| C2950-14 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 6646-720 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| C2950-14 | 3/2 Design control — primary reference U.S. Government activity |
| VN332-070 | 5/2 Secondary reference U.S. Government activity |
| C2950-14 | 5/2 Secondary reference U.S. Government activity |
| H530-7 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| LH8314-070 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-927-7845 is a Nut,self-Locking,extended Washer, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-927-7845 has 5 manufacturer part numbers on file: C2950-14 (Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems), C2950-14 (Howmet Global Fastening Systems Inc), KFN530-7 (Howmet Global Fastening Systems Inc), C2950-14 (Sps Technologies, Llc Dba PB Fasteners), 6646-720 (Sps Technologies, Llc Dba PB Fasteners).
1 possible match (shared part number, not a government interchangeability claim): 5905-01-142-7745. Verify interchangeability with system specifications before substitution.
Key specifications for KFN530-7: Lubrication: SOLUBLE LUBRICANT; Overall Height: 0.383 INCHES MAXIMUM IN; Washer Outside Diameter: 0.705 INCHES MAXIMUM IN; Width Across Flats: 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN. 13 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.