The Screw,machine, cataloged under National Stock Number 5305-00-271-6458, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-271-6458 |
| Primary Part Number | 346418PC7 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Screw Surface Treatment | ZINC |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Screw Material Document and Classification | MIL-S-18411,CL 1 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18411,CL 1 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-18411,CL 1 MIL SPEC 3RD MATERIAL RESPONSE |
| Thread Length | 0.472 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nondefinitive Spec/std Data | I TYPE AND 2S STYLE |
| Screw Material | STEEL COMP 1115 OR STEEL COMP 1117 OR STEEL COMP 1120 |
| Internal Drive Style | SLOT |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| Head Diameter | 0.477 INCHES MINIMUM AND 0.507 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 |
|---|---|
| 346418PC7 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 43-S-16452-692 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 12Z42PC204 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| FFS92TYPE1STYLE2S | 4/1 Identification reference U.S. Government activity |
NSN 5305-00-271-6458 is a Screw,machine, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-271-6458 has 3 manufacturer part numbers on file: 346418PC7 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 43-S-16452-692 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 12Z42PC204 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 346418PC7: Screw Surface Treatment: ZINC; Fastener Length: 0.625 INCHES NOMINAL IN; Screw Material Document and Classification: MIL-S-18411,CL 1 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18411,CL 1 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-18411,CL 1 MIL SPEC 3RD MATERIAL RESPONSE; Thread Length: 0.472 INCHES NOMINAL IN. 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.