The Screw,close Tolerance, cataloged under National Stock Number 5305-01-667-3820, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. The record lists 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Hi-Shear Corporation (CAGE 73197); Huck International, Inc (CAGE 17446); Howmet Global Fastening Systems Inc Div City of Industry Operations (CAGE 1RC86); Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725); Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (CAGE 27624) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-667-3820 |
| Primary Part Number | BACB30NN4K7X |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| BACB30NN4K7X PRIMARY | Hi-Shear Corporation (USA) |
| BACB30NN4K7X PRIMARY | Huck International, Inc (USA) |
| BACB30NN4K7X PRIMARY | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30NN4K7X PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30NN4K7X PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30NN4K7X PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30NN4K7X | Blanc Aero Industrie Villefranche De Rouergue - Groupe Lisi Aerospace (FRA) |
| Reference | Meaning |
|---|---|
| BACB30NN4K7X | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5305-01-667-3820 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-667-3820 has 7 manufacturer part numbers on file: BACB30NN4K7X (Hi-Shear Corporation), BACB30NN4K7X (Huck International, Inc), BACB30NN4K7X (Howmet Global Fastening Systems Inc Div City of Industry Operations), BACB30NN4K7X (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30NN4K7X (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 2 more.
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.