The Screw,machine, cataloged under National Stock Number 5305-01-321-4172, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is M.t. Davidson Company. Government technical data includes 13 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 | 5305-01-321-4172 |
| Primary Part Number | GCP-801-36 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | M.t. Davidson Company |
| Status | ACTIVE |
| Head Height | 0.207 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Screw Material Document and Classification | QQ-N-281 FED SPEC ALL MATERIAL RESPONSES |
| Thread Length | 0.150 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Screw Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.389 INCHES MINIMUM AND 0.414 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 |
|---|---|
| GCP-801-36 PRIMARY | M.t. Davidson Company (USA) |
NSN 5305-01-321-4172 is a Screw,machine, manufactured by M.t. Davidson Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-321-4172 has 1 manufacturer part number on file: GCP-801-36 (M.t. Davidson Company).
Key specifications for GCP-801-36: Head Height: 0.207 INCHES MINIMUM AND 0.237 INCHES MAXIMUM IN; Fastener Length: 0.750 INCHES NOMINAL IN; Screw Material Document and Classification: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES; Thread Length: 0.150 INCHES MINIMUM IN. 13 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.