The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-176-7064, 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 15 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-176-7064 |
| Primary Part Number | BH00685-9 |
| 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 | 1.055 INCHES MAXIMUM IN |
| Width Across Flats | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hardness Rating | 40.0 ROCKWELL C NOMINAL |
| Washer Thickness | 0.047 INCHES MINIMUM IN |
| Material Document and Classification | AMS 5844 OR AMS 5842 OR AMS 6532 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.562 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | COBALT ALLOY 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 |
|---|---|
| 94288-918 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| SII1262-9 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| BH00685-9 PRIMARY | Bristol Industries, Llc (USA) |
| H54656-9S | Howmet Global Fastening Systems Inc (USA) |
| SLN125-9 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| Reference | Meaning |
|---|---|
| HS4133-9 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| EWNM26-918 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| MC10009-9 | 5/9 Secondary reference Mecair Aerospace Industries,subsidiary of Spstechnologiesdiv Division of Sps Technologiesdba Mecair Inc. Div Division of Sps Technologies |
| HS4133-9 | 5/9 Secondary reference Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| PBF1447-9 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| HS4133-9 | 7/2 Vendor item drawing reference The Boeing Company |
NSN 5310-01-176-7064 is a Nut,self-Locking,extended Washer, manufactured by Bristol Industries, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-176-7064 has 5 manufacturer part numbers on file: 94288-918 (Sps Technologies, Llc Dba PB Fasteners), SII1262-9 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), BH00685-9 (Bristol Industries, Llc), H54656-9S (Howmet Global Fastening Systems Inc), SLN125-9 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok).
Key specifications for BH00685-9: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.760 INCHES MAXIMUM IN; Washer Outside Diameter: 1.055 INCHES MAXIMUM IN; Width Across Flats: 0.741 INCHES MINIMUM AND 0.752 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.