The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-448-4014, 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 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-448-4014 |
| Primary Part Number | ST5074-10 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 0.430 INCHES NOMINAL IN |
| Width Across Flats | 0.347 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 825.0 FAHRENHEIT MINIMUM AND 875.0 FAHRENHEIT MAXIMUM DEGF |
| Thread Pitch Diameters | +0.2500 TO 0.2800 INCHES IN |
| Washer Thickness | 0.052 INCHES NOMINAL IN |
| Material Document and Classification | AMS5708 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | SILVER OVERALL |
| Nut Style | HEXAGON |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| ST5074-10 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| H54893-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| VN4848 WA048 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| ST5074-10 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5310-01-448-4014 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 5310-01-448-4014 has 4 manufacturer part numbers on file: ST5074-10 (Sps Technologies, Llc Dba PB Fasteners), H54893-4 (Howmet Global Fastening Systems Inc), VN4848 WA048 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), ST5074-10 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for ST5074-10: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.308 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN; Washer Outside Diameter: 0.430 INCHES NOMINAL IN; Width Across Flats: 0.347 INCHES NOMINAL 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.