The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-333-6437, 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 17 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-333-6437 |
| Primary Part Number | 83671-8L |
| 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 | 0.869 INCHES MINIMUM AND 0.879 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 800.0 FAHRENHEIT MAXIMUM DEGF |
| Hardness Rating | 46.0 ROCKWELL C NOMINAL |
| Washer Thickness | 0.060 INCHES MINIMUM IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5663 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | PASSIVATE OVERALL |
| Drive Point Quantity | 20 |
| Nut Style | SPLINE DRIVE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY 718 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 |
|---|---|
| BH102-8L | Bristol Industries, Llc (USA) |
| 83671-8L PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 03A102-8L | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| 03A102-8L | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| 03A102-8L | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| VN3201YL080 | 5/9 Secondary reference U.S. Government activity |
| H52765-8DL | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| H52765-8DL | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 03A102-8L | 7/2 Vendor item drawing reference Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| VN3201YL080 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Voi-Shan Products |
| VN3201YL080 | 5/9 Secondary reference Bristol Industries, Llc |
NSN 5310-01-333-6437 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 5310-01-333-6437 has 5 manufacturer part numbers on file: BH102-8L (Bristol Industries, Llc), 83671-8L (Sps Technologies, Llc Dba PB Fasteners), 03A102-8L (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), 03A102-8L (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), 03A102-8L (Howmet Global Fastening Systems Inc).
Key specifications for 83671-8L: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.550 INCHES MINIMUM AND 0.575 INCHES MAXIMUM IN; Washer Outside Diameter: 0.869 INCHES MINIMUM AND 0.879 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 17 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.