The Screw,machine, cataloged under National Stock Number 5305-00-581-0089, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-581-0089 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Fastener Length | 0.574 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN |
| Screw Material Document and Classification | QQ-S-764 COND T FED SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 0.544 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN |
| Hardness Rating | 38.0 ROCKWELL C MINIMUM |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.250 INCHES NOMINAL IN |
| Screw Material | STEEL COMP 416 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 80 |
| Thread Series Designator | UNS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 422R387H01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-581-0089 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-581-0089: Head Height: 0.120 INCHES NOMINAL IN; Fastener Length: 0.574 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN; Screw Material Document and Classification: QQ-S-764 COND T FED SPEC SINGLE MATERIAL RESPONSE; Thread Length: 0.544 INCHES MINIMUM AND 0.558 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.