The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-950-8468, 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 12 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 | 5310-00-950-8468 |
| Primary Part Number | 57522-1216 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Washer Outside Diameter | 1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Width Across Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Temp Rating | 1000.0 FAHRENHEIT NOMINAL DEGF |
| Washer Thickness | 0.185 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| 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 |
|---|---|
| 57522-1216 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GN511K1216 | Northrop Grumman Systems Corporation (USA) |
NSN 5310-00-950-8468 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 5310-00-950-8468 has 2 manufacturer part numbers on file: 57522-1216 (Sps Technologies, Llc Dba PB Fasteners), GN511K1216 (Northrop Grumman Systems Corporation).
Key specifications for 57522-1216: Overall Height: 0.776 INCHES MINIMUM AND 0.786 INCHES MAXIMUM IN; Washer Outside Diameter: 1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN; Width Across Flats: 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN; Thread Series: UNF. 12 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.