The Screw,machine, cataloged under National Stock Number 5305-01-596-3907, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-596-3907 |
| Primary Part Number | BACS12HJ3K5 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.122 INCHES NOMINAL IN |
| Screw Surface Treatment | ALUMINUM |
| Fastener Length | 0.312 INCHES NOMINAL IN |
| Thread Length | 0.190 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | TITANIUM ALLOY UNS R56400 |
| Internal Drive Style | CROSS RECESS TYPE III |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNJC |
| Head Diameter | 0.357 INCHES MINIMUM AND 0.373 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 |
|---|---|
| BACS12HJ3K5 | Huck International, Inc (USA) |
| BACS12HJ3K5 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACS12HJ3K5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACS12HJ3K5 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| Reference | Meaning |
|---|---|
| BACS12HJ3K5 | 5/2 Secondary reference U.S. Government activity |
| BACS12HJ3K5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-596-3907 is a Screw,machine, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-596-3907 has 4 manufacturer part numbers on file: BACS12HJ3K5 (Huck International, Inc), BACS12HJ3K5 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACS12HJ3K5 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACS12HJ3K5 (Howmet Global Fastening Systems Inc Div City of Industry Operations).
Key specifications for BACS12HJ3K5: Head Height: 0.122 INCHES NOMINAL IN; Screw Surface Treatment: ALUMINUM; Fastener Length: 0.312 INCHES NOMINAL IN; Thread Length: 0.190 INCHES NOMINAL 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.