The Screw,machine, cataloged under National Stock Number 5305-01-045-8389, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Goriziane Group Spa. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-045-8389 |
| Primary Part Number | 2585164-279 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Goriziane Group Spa |
| Status | ACTIVE |
| Head Height | 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| Fastener Length | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Screw Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Surface Treatment | CADMIUM AND CHROMATE |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Head Surface Treatment Document and Classification | QQ-P-416, TY 2, CL 3 FED SPEC ALL TREATMENT RESPONSES |
| Locking Feature | STRIP |
| Screw Material | STEEL |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.473 INCHES MINIMUM AND 0.492 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 |
|---|---|
| 2585164-279 | Goriziane Group Spa (ITA) |
| 2585164-279 | Fnss Savunma Sistemleri Anonim Sirketi (TUR) |
| Reference | Meaning |
|---|---|
| 2585164-279 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-045-8389 is a Screw,machine, manufactured by Goriziane Group Spa, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-045-8389 has 2 manufacturer part numbers on file: 2585164-279 (Goriziane Group Spa), 2585164-279 (Fnss Savunma Sistemleri Anonim Sirketi).
Key specifications for 2585164-279: Head Height: 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN; Fastener Length: 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Screw Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE; Thread Length: 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN. 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.