The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-434-6613, 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. Government technical data includes 15 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-434-6613 |
| Primary Part Number | BACN10HR7CD |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Washer Outside Diameter | 0.750 INCHES MAXIMUM IN |
| Width Across Flats | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Temp Rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| Washer Thickness | 0.075 INCHES MINIMUM IN |
| Material Document and Classification | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.437 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| BACN10HR7CD | Howmet Global Fastening Systems Inc (USA) |
| BACN10HR7CD | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACN10HR7CD | Alcoa Global Fasteners, Inc Dba Simmonds Mecaero Fas Pdts Div Simmonds Mecaero Fas Pdts (USA) |
| BACN10HR7CD | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| BACN10HR7CD | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| BACN10HR7CD | 3/2 Design control — primary reference U.S. Government activity |
| BACN10HR7CD | 5/9 Secondary reference Harvard Industries Inc |
| BACN10HR7CD | 5/9 Secondary reference U.S. Government activity |
| BACN10HR7CD | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5310-01-434-6613 is a Nut,self-Locking,extended Washer, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-434-6613 has 4 manufacturer part numbers on file: BACN10HR7CD (Howmet Global Fastening Systems Inc), BACN10HR7CD (Sps Technologies, Llc Dba PB Fasteners), BACN10HR7CD (Alcoa Global Fasteners, Inc Dba Simmonds Mecaero Fas Pdts Div Simmonds Mecaero Fas Pdts), BACN10HR7CD (Bristol Industries, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-669-7093. Verify interchangeability with system specifications before substitution.
Key specifications for BACN10HR7CD: Overall Height: 0.520 INCHES MAXIMUM IN; Washer Outside Diameter: 0.750 INCHES MAXIMUM IN; Width Across Flats: 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.