The Screw,machine, cataloged under National Stock Number 5305-00-252-4637, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Raytheon 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 | 5305-00-252-4637 |
| Primary Part Number | 105193-406 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Screw Surface Treatment | OXIDE |
| Fastener Length | 0.438 INCHES NOMINAL IN |
| Thread Length | 0.376 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Screw Material | COPPER ALLOY |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.287 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | FPS143-2 FSCM 37695 MFR REF 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 |
|---|---|
| 105193-406 PRIMARY | Raytheon Company (USA) |
NSN 5305-00-252-4637 is a Screw,machine, manufactured by Raytheon Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-252-4637 has 1 manufacturer part number on file: 105193-406 (Raytheon Company).
Key specifications for 105193-406: Head Height: 0.120 INCHES NOMINAL IN; Screw Surface Treatment: OXIDE; Fastener Length: 0.438 INCHES NOMINAL IN; Thread Length: 0.376 INCHES MINIMUM 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.