The Screw,machine, cataloged under National Stock Number 5305-01-379-4089, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-379-4089 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.113 INCHES MAXIMUM IN |
| Locking Feature Material Document and Classification | ZZ-R-765, CLASS 1 OR 2, GRADE 70, RED FED SPEC SINGLE MATERIAL RESPONSE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.417 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Locking Feature Material | RUBBER SILICONE CLASS Q |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Features Provided | O RING |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | A24 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.374 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 |
| Reference | Meaning |
|---|---|
| S10-24X1/2 2701 | 3/2 Design control — primary reference U.S. Government activity |
| SEELSKEWS10-24X1/2 | 5/9 Secondary reference U.S. Government activity |
| TYPE S, 10-24 1/2 | 5/2 Secondary reference U.S. Government activity |
| SEELSKREWS 10-24X1/2 | 3/2 Design control — primary reference U.S. Government activity |
| S10-24X1/2 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-379-4089 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-379-4089: Head Height: 0.113 INCHES MAXIMUM IN; Locking Feature Material Document and Classification: ZZ-R-765, CLASS 1 OR 2, GRADE 70, RED FED SPEC SINGLE MATERIAL RESPONSE; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.500 INCHES NOMINAL IN. 16 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.