The Screw,close Tolerance, cataloged under National Stock Number 5305-01-612-4758, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-612-4758 |
| Primary Part Number | BACB30ZE4-7 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Head Height | 0.014 INCHES MAXIMUM IN |
| Fastener Length | 0.8075 INCHES NOMINAL IN |
| Thread Length | 0.370 INCHES NOMINAL IN |
| Single Shear Strength | ERR-060 |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.4375 INCHES NOMINAL IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE II |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNJC |
| Head Diameter | 0.355 INCHES MINIMUM AND 0.397 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 |
|---|---|
| BACB30ZE4-7 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30ZE4-7 | Howmet Global Fastening Systems Inc (USA) |
| BACB30ZE4-7 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30ZE4-7 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30ZE4-7 | Hi-Shear Corporation (USA) |
| BACB30ZE4-7 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| Reference | Meaning |
|---|---|
| BACB30ZE4-7 | 5/2 Secondary reference U.S. Government activity |
| NAS8704-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-612-4758 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-612-4758 has 6 manufacturer part numbers on file: BACB30ZE4-7 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30ZE4-7 (Howmet Global Fastening Systems Inc), BACB30ZE4-7 (Sps Technologies, Llc Dba PB Fasteners), BACB30ZE4-7 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30ZE4-7 (Hi-Shear Corporation) and 1 more.
Key specifications for BACB30ZE4-7: Head Height: 0.014 INCHES MAXIMUM IN; Fastener Length: 0.8075 INCHES NOMINAL IN; Thread Length: 0.370 INCHES NOMINAL IN; Single Shear Strength: ERR-060. 17 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.