The Screw,machine, cataloged under National Stock Number 5305-01-589-7243, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Boeing Defence Australia Ltd. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-589-7243 |
| Primary Part Number | BACS12CK3H8 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Boeing Defence Australia Ltd |
| Status | ACTIVE |
| Head Height | 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Screw Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Screw Material | IRON ALLOY 660 |
| Internal Drive Style | CROSS RECESS TYPE II |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | AMS 2700, TYPE 8 ASSN STD SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| BACS12CK3H8 | Boeing Defence Australia Ltd (AUS) |
| Reference | Meaning |
|---|---|
| BACS12CK3H8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-589-7243 is a Screw,machine, manufactured by Boeing Defence Australia Ltd, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-589-7243 has 1 manufacturer part number on file: BACS12CK3H8 (Boeing Defence Australia Ltd).
Key specifications for BACS12CK3H8: Head Height: 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.500 INCHES NOMINAL IN; Screw Material Document and Classification: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE. 15 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.