The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-187-8703, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Legacy Am&m. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-187-8703 |
| Primary Part Number | LE114-0030-0003 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 0.318 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Width Across Flats | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | QQ-A-225/9,T73 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.102 INCHES MINIMUM AND 0.112 INCHES MAXIMUM FIRST END IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Counterbore Diameter | 0.224 INCHES MINIMUM AND 0.228 INCHES MAXIMUM FIRST END IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | ANODIZE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| LE114-0030-0003 | The Boeing Company Div Legacy Am&m (USA) |
| 81559-1032 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| LE114-0030-0003 | Hi-Shear Corporation (USA) |
| KFN600-3 | Huck International, Inc (USA) |
| LE114-0030-0003 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| KFN600-3- | Howmet Global Fastening Systems Inc (USA) |
| BH00300-3 | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| BACN10X13 | 3/2 Design control — primary reference U.S. Government activity |
| KFN600-3 | 5/9 Secondary reference U.S. Government activity |
| KFN600-3 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-187-8703 is a Nut,self-Locking,extended Washer, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-187-8703 has 7 manufacturer part numbers on file: LE114-0030-0003 (The Boeing Company Div Legacy Am&m), 81559-1032 (Sps Technologies, Llc Dba PB Fasteners), LE114-0030-0003 (Hi-Shear Corporation), KFN600-3 (Huck International, Inc), LE114-0030-0003 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 2 more.
Key specifications for LE114-0030-0003: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.280 INCHES MAXIMUM IN; Washer Outside Diameter: 0.318 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN; Width Across Flats: 0.243 INCHES MINIMUM AND 0.251 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.