The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-027-3093, 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 17 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-027-3093 |
| Primary Part Number | BACN10HR12C |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bristol Industries, Llc |
| Status | ACTIVE |
| Washer Outside Diameter | 1.230 INCHES MAXIMUM IN |
| Width Across Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Precious Material | SILVER |
| Temp Rating | 900.0 FAHRENHEIT NOMINAL DEGF |
| Washer Thickness | 0.120 INCHES MINIMUM IN |
| Material Document and Classification | AMS 5662 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5662 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Specification/standard Data | 81205-BACN10HR MANUFACTURERS STANDARD |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | SILVER OVERALL |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| 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 |
|---|---|
| BACN10HR12C PRIMARY | Bristol Industries, Llc (USA) |
| H97-12 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 67832A-12 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACN10HR12C PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BMN5024C12 PRIMARY | Huck International, Inc (USA) |
| BACN10HR12C | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| BMN5024C-12 | 5/9 Secondary reference Omark Industries Inc |
| BACN10HR12C | 7/2 Vendor item drawing reference U.S. Government activity |
| BMN5024C12 | 5/9 Secondary reference U.S. Government activity |
| 101LH9031-12 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-027-3093 is a Nut,self-Locking,extended Washer, manufactured by Bristol Industries, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-027-3093 has 6 manufacturer part numbers on file: BACN10HR12C (Bristol Industries, Llc), H97-12 (Howmet Global Fastening Systems Inc), 67832A-12 (Sps Technologies, Llc Dba PB Fasteners), BACN10HR12C (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BMN5024C12 (Huck International, Inc) and 1 more.
Key specifications for BACN10HR12C: Overall Height: 0.900 INCHES MAXIMUM IN; Washer Outside Diameter: 1.230 INCHES MAXIMUM IN; Width Across Flats: 0.928 INCHES MINIMUM AND 0.940 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.