The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-146-9895, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-146-9895 |
| Primary Part Number | BACB30NX5-4 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Head Height | 0.055 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Fastener Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Thread Length | 0.312 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Grip Diameter | 0.1630 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.306 INCHES MINIMUM AND 0.326 INCHES MAXIMUM 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 |
|---|---|
| BACB30NX5-4 | Hi-Shear Corporation (USA) |
| BACB30NX5-4 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30NX5-4 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BACB30NX5-4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BACB30NX5-4 | 5/9 Secondary reference U.S. Government activity |
| BACB30NX5-4 | 5/9 Secondary reference U.S. Government activity |
| BACB30NX5-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-146-9895 is a Bolt,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-146-9895 has 4 manufacturer part numbers on file: BACB30NX5-4 (Hi-Shear Corporation), BACB30NX5-4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30NX5-4 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), BACB30NX5-4 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for BACB30NX5-4: Head Height: 0.055 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Fastener Length: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN; Thread Length: 0.312 INCHES NOMINAL IN; Nominal Thread Diameter: 0.164 INCHES IN. 13 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.