The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-023-0374, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-023-0374 |
| Primary Part Number | BACB30NE4-5 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 0.722 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Thread Length | 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| 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 |
|---|---|
| BACB30NE4-5 | Howmet Global Fastening Systems Inc (USA) |
| BACB30NE4-5 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30NE4-5 | Federal Manufacturing Corp (USA) |
| BACB30NE4-5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30NE4-5 | Huck International, Inc (USA) |
| BACB30NE4-5 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30NE4-5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BACB30NE4-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-023-0374 is a Bolt,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-023-0374 has 7 manufacturer part numbers on file: BACB30NE4-5 (Howmet Global Fastening Systems Inc), BACB30NE4-5 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30NE4-5 (Federal Manufacturing Corp), BACB30NE4-5 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30NE4-5 (Huck International, Inc) and 2 more.
Key specifications for BACB30NE4-5: Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 0.722 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN; Thread Length: 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN; Width Between Flats: 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN. 6 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.