The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-046-9737, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Voi-Shan Products. Government technical data includes 17 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-046-9737 |
| Primary Part Number | BACN10GW5A |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Voi-Shan Products |
| Status | ACTIVE |
| Washer Outside Diameter | 0.532 INCHES MAXIMUM IN |
| Width Across Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Precious Material | SILVER |
| Temp Rating | 900.0 FAHRENHEIT NOMINAL DEGF |
| Washer Thickness | 0.035 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3125 INCHES IN |
| Specification/standard Data | 81205-BAC-10GW MANUFACTURERS STANDARD |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | SILVER OVERALL |
| Precious Material and Location | EXTERNAL SURFACES SILVER |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| BACN10GW5A | Howmet Global Fastening Systems Inc (USA) |
| BACN10GW5A PRIMARY | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| BACN10GW5A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACN10GW5A | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| MN-97B5 | 5/9 Secondary reference U.S. Government activity |
| BACN10GW5A | 7/2 Vendor item drawing reference U.S. Government activity |
| H94-5 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| BMN10GW5A | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 66796A5 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BMN10GW5A | 5/9 Secondary reference U.S. Government activity |
| SL7022C5 | 5/9 Secondary reference Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace |
| LH8574-5 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-046-9737 is a Nut,self-Locking,extended Washer, manufactured by Howmet Global Fastening Systems Inc. Div Voi-Shan Products, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-046-9737 has 4 manufacturer part numbers on file: BACN10GW5A (Howmet Global Fastening Systems Inc), BACN10GW5A (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), BACN10GW5A (Sps Technologies, Llc Dba PB Fasteners), BACN10GW5A (Huck International, Inc).
Key specifications for BACN10GW5A: Overall Height: 0.285 INCHES MAXIMUM IN; Washer Outside Diameter: 0.532 INCHES MAXIMUM IN; Width Across Flats: 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS 2410 ASSN STD 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.