The Screw,machine, cataloged under National Stock Number 5305-01-581-1674, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-581-1674 |
| Primary Part Number | BACS12GU08K7 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Head Height | 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Screw Surface Treatment | ALUMINUM |
| Fastener Length | 0.4215 INCHES MINIMUM AND 0.4685 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.376 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.243 INCHES MINIMUM AND 0.251 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 | UNJC |
| 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 |
|---|---|
| BACS12GU08K7 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACS12GU08K7 | 3-V Fastener Co., Inc. (USA) |
| BACS12GU08K7 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BACS12GU08K7 | 3/2 Design control — primary reference U.S. Government activity |
| BACS12GU08K7 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-581-1674 is a Screw,machine, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-581-1674 has 3 manufacturer part numbers on file: BACS12GU08K7 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACS12GU08K7 (3-V Fastener Co., Inc.), BACS12GU08K7 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-669-6958. Verify interchangeability with system specifications before substitution.
Key specifications for BACS12GU08K7: Head Height: 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Screw Surface Treatment: ALUMINUM; Fastener Length: 0.4215 INCHES MINIMUM AND 0.4685 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.