The Screw,machine, cataloged under National Stock Number 5305-00-033-6921, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Phaostron Instrument and Electronic Company. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-033-6921 |
| Primary Part Number | P409-12 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Phaostron Instrument and Electronic Company |
| Status | ACTIVE |
| Head Height | 0.086 INCHES NOMINAL IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Thread Length | 0.656 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Minimum Tensile Strength | 65000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.211 INCHES NOMINAL 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 |
|---|---|
| P409-12 PRIMARY | Phaostron Instrument and Electronic Company (USA) |
NSN 5305-00-033-6921 is a Screw,machine, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-033-6921 has 1 manufacturer part number on file: P409-12 (Phaostron Instrument and Electronic Company).
Key specifications for P409-12: Head Height: 0.086 INCHES NOMINAL IN; Screw Surface Treatment: CADMIUM; Fastener Length: 0.750 INCHES NOMINAL IN; Thread Length: 0.656 INCHES MAXIMUM IN. 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.