The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-917-6360, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-917-6360 |
| Primary Part Number | 66462-428 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Lubrication | SOLUBLE LUBRICANT |
| Washer Outside Diameter | 0.425 INCHES MAXIMUM IN |
| Width Across Flats | 0.274 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Temp Rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| 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 |
|---|---|
| 66462-428 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| KFN530-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| LH8314-048 | 5/9 Secondary reference Harvard Industries Inc |
| VN332-048 | 3/2 Design control — primary reference U.S. Government activity |
| C2950-8 | 7/2 Vendor item drawing reference U.S. Government activity |
| H530-4 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
NSN 5310-00-917-6360 is a Nut,self-Locking,extended Washer, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-917-6360 has 2 manufacturer part numbers on file: 66462-428 (Sps Technologies, Llc Dba PB Fasteners), KFN530-4 (Howmet Global Fastening Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5905-01-142-7163. Verify interchangeability with system specifications before substitution.
Key specifications for 66462-428: Lubrication: SOLUBLE LUBRICANT; Overall Height: 0.230 INCHES MAXIMUM IN; Washer Outside Diameter: 0.425 INCHES MAXIMUM IN; Width Across Flats: 0.274 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN. 15 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.