The Screw,machine, cataloged under National Stock Number 5305-01-338-4567, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies Llc Dba PB Fasteners Div PB Fasteners. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-338-4567 |
| Primary Part Number | BACS12GU3K35 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Screw Surface Treatment | ALUMINUM |
| Fastener Length | 2.171 INCHES MINIMUM AND 2.218 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 2.093 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.305 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN |
| Screw Material | TITANIUM ALLOY UNS R56400 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| BACS12GU3K35 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACS12GU3K35 | Howmet Global Fastening Systems Inc (USA) |
| BACS12GU3K35 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| BACS12GU3K35 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| BACS12GU3K35 | 5/2 Secondary reference U.S. Government activity |
| BACS12GU3K35 | 5/9 Secondary reference U.S. Government activity |
| BACS12GU3K35 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-338-4567 is a Screw,machine, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-338-4567 has 3 manufacturer part numbers on file: BACS12GU3K35 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACS12GU3K35 (Howmet Global Fastening Systems Inc), BACS12GU3K35 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for BACS12GU3K35: Head Height: 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Screw Surface Treatment: ALUMINUM; Fastener Length: 2.171 INCHES MINIMUM AND 2.218 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE. 14 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.