The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-444-1237, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bristol Industries, Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-444-1237 |
| Primary Part Number | BH00182C08 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bristol Industries, Llc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN |
| Width Across Flats | 0.213 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-S-365 FED SPEC SINGLE TREATMENT RESPONSE OR AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNJC |
| Precious Material | SILVER |
| Temp Rating | 800.0 FAHRENHEIT MAXIMUM DEGF |
| Washer Thickness | 0.061 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | SILVER OVERALL |
| Precious Material and Location | ALL SURFACES SILVER |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 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 |
|---|---|
| BH00182C08 PRIMARY | Bristol Industries, Llc (USA) |
| 92652-08 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VN376B82W PRIMARY | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| HK52738-08 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 3D0007-08 | 5/2 Secondary reference U.S. Government activity |
| 3D0007-08 | 5/9 Secondary reference Bristol Industries, Llc |
NSN 5310-01-444-1237 is a Nut,self-Locking,extended Washer, manufactured by Bristol Industries, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-444-1237 has 4 manufacturer part numbers on file: BH00182C08 (Bristol Industries, Llc), 92652-08 (Sps Technologies, Llc Dba PB Fasteners), VN376B82W (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), HK52738-08 (Howmet Global Fastening Systems Inc).
Key specifications for BH00182C08: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.227 INCHES MAXIMUM IN; Washer Outside Diameter: 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN; Width Across Flats: 0.213 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN. 18 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.