The Screw,machine, cataloged under National Stock Number 5305-00-331-0641, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. 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 | 5305-00-331-0641 |
| Primary Part Number | 8151237 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Head Height | 0.046 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.922 INCHES MINIMUM AND 0.954 INCHES MAXIMUM IN |
| Thread Length | 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN |
| Screw Material | STEEL COMP 416 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 8151237 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5305-00-331-0641 is a Screw,machine, manufactured by Us Army Aviation and Missile Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-331-0641 has 1 manufacturer part number on file: 8151237 (Us Army Aviation and Missile Command).
Key specifications for 8151237: Head Height: 0.046 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.922 INCHES MINIMUM AND 0.954 INCHES MAXIMUM IN; Thread Length: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM 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.