The Nut,expansion, cataloged under National Stock Number 5310-01-042-6709, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-042-6709 |
| Primary Part Number | BB341-12 |
| Item Name | Nut,expansion |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 0.368 IN. LG; 0.383 IN. DIA; .250-28UNJF-3B THREAD; STAINLESS STEEL; CADMIUM PLATE FINISH IN |
| 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 |
|---|---|
| BB341-12 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| GE530A12 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| BB341-12 | Blanc Aero Industries - Groupe Lisi Aerospace (FRA) |
| BB341-12 PRIMARY | Hi-Shear Corporation (USA) |
| BB341-12 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| FD-N0144-005 | 7/2 Vendor item drawing reference Raytheon E-Systems, Inc |
NSN 5310-01-042-6709 is a Nut,expansion, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-042-6709 has 5 manufacturer part numbers on file: BB341-12 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), GE530A12 (Northrop Grumman Systems Corporation), BB341-12 (Blanc Aero Industries - Groupe Lisi Aerospace), BB341-12 (Hi-Shear Corporation), BB341-12 (West Coast Aerospace, Inc.).
Key specifications for BB341-12: General Characteristics Item Description: 0.368 IN. LG; 0.383 IN. DIA; .250-28UNJF-3B THREAD; STAINLESS STEEL; CADMIUM PLATE FINISH IN; End Item Identification: 2F95-F14A AIRCRAFT OPERATION FLIGHT TRAINER. 1 specification is 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.