The Expander,self-Locking, cataloged under National Stock Number 5325-01-099-6719, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-01-099-6719 |
| Primary Part Number | BB346G-8 |
| Item Name | Expander,self-Locking |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| General Characteristics Item Description | STAINLESS STEEL PER AMS 5643;SILVER PLATE PER AMS 2410;0.255 IN. NOM O.D.;0.245 IN. NOM LG;0.164-32 UNJC-3B THREAD;SHEAR STRENGTH 120,000 PSI MINIMUM;ELLIPTICAL,SELF-LOCKING ACTION;KNURLED ALONG CENTER SHOULDER IN |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| BB346G-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BB346G-8 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BB346G-8 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 4054227 | 5/9 Secondary reference Am Multigraphics Div of Am Intl Inc |
| 4054227 | 5/9 Secondary reference Forest Service Specifications Promulgated by United States Forest Service Washington DC |
| 4054227 | 3/9 Design control — primary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 5325-01-099-6719 is a Expander,self-Locking, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-099-6719 has 3 manufacturer part numbers on file: BB346G-8 (Sps Technologies, Llc Dba PB Fasteners), BB346G-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), BB346G-8 (Hi-Shear Corporation).
Key specifications for BB346G-8: General Characteristics Item Description: STAINLESS STEEL PER AMS 5643;SILVER PLATE PER AMS 2410;0.255 IN. NOM O.D.;0.245 IN. NOM LG;0.164-32 UNJC-3B THREAD;SHEAR STRENGTH 120,000 PSI MINIMUM;ELLIPTICAL,SELF-LOCKING ACTION;KNURLED ALONG CENTER SHOULDER IN; Criticality Code Justification: FEAT; Special Features: ITEM IS CRITICAL DUE TO CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES, AND MANUFACTURING PROCESSES. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM OR DEATH/SERIOUS INJURY.; End Item Identification: 2840-01-096-2725 CASE,AXIAL COMPRESSOR. 2 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.