The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-112-1569, 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 16 specifications, cited from the U.S. Government catalog. The record lists 7 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-112-1569 |
| Primary Part Number | BACN10XJ4 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 0.418 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN |
| Width Across Flats | 0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | QQ-A-225/9,TEMPER T73 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-430,TEMPER T73 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.107 INCHES MINIMUM AND 0.117 INCHES MAXIMUM NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Counterbore Diameter | 0.284 INCHES MINIMUM AND 0.288 INCHES MAXIMUM NUT IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | ANODIZE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | ALUMINUM ALLOY 7075 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 |
|---|---|
| BACN10XJ4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| KFN600-4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACN10XJ4 PRIMARY | Bristol Industries, Llc (USA) |
| BACN10XJ4 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BH190-4 | Bristol Industries, Llc (USA) |
| BACN10XJ4 | Huck International, Inc (USA) |
| KFN600-4 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| BACN10XJ4 | 5/9 Secondary reference Ge Kaye Instruments Inc |
| KFN600-4 | 5/9 Secondary reference Ge Kaye Instruments Inc |
| KFN600-4 | 5/9 Secondary reference U.S. Government activity |
| KFN600-4S | 5/9 Secondary reference U.S. Government activity |
| BACN10XJ4 | 7/2 Vendor item drawing reference U.S. Government activity |
| 03A190-4 | 5/9 Secondary reference Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
NSN 5310-01-112-1569 is a Nut,self-Locking,extended Washer, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-112-1569 has 7 manufacturer part numbers on file: BACN10XJ4 (Howmet Global Fastening Systems Inc), KFN600-4 (Sps Technologies, Llc Dba PB Fasteners), BACN10XJ4 (Bristol Industries, Llc), BACN10XJ4 (Sps Technologies, Llc Dba PB Fasteners), BH190-4 (Bristol Industries, Llc) and 2 more.
Key specifications for BACN10XJ4: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.340 INCHES MAXIMUM IN; Washer Outside Diameter: 0.418 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN; Width Across Flats: 0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN. 16 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.