The Screw,close Tolerance, cataloged under National Stock Number 5305-01-641-3358, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. The record lists 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Howmet Global Fastening Systems Inc (CAGE 06950); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725); Hi-Shear Corporation (CAGE 73197); Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (CAGE 27624) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-641-3358 |
| Primary Part Number | BACB30ZE4-8 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| 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 |
|---|---|
| BACB30ZE4-8 | Howmet Global Fastening Systems Inc (USA) |
| BACB30ZE4-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30ZE4-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30ZE4-8 | Hi-Shear Corporation (USA) |
| BACB30ZE4-8 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30ZE4-8 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| Reference | Meaning |
|---|---|
| BACB30ZE4-8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-641-3358 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-641-3358 has 6 manufacturer part numbers on file: BACB30ZE4-8 (Howmet Global Fastening Systems Inc), BACB30ZE4-8 (Sps Technologies, Llc Dba PB Fasteners), BACB30ZE4-8 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30ZE4-8 (Hi-Shear Corporation), BACB30ZE4-8 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 1 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.