The Screw,machine, cataloged under National Stock Number 5305-01-349-9124, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-349-9124 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.180 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Screw Surface Treatment | CHROMATE |
| Fastener Length | 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS5659 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.370 INCHES MINIMUM IN |
| Hardness Rating | 31.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | HEXAGON COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.250 INCHES NOMINAL IN |
| Screw Material | STEEL COMP XM-12 |
| Bottom Countersink Diameter | 0.250 INCHES NOMINAL IN |
| Internal Drive Style | CLUTCH TYPE II |
| Countersink Angle | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| Thread Class | 3A 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 | N |
| Reference | Meaning |
|---|---|
| 3172200-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-349-9124 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-349-9124: Head Height: 0.180 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN; Screw Surface Treatment: CHROMATE; Fastener Length: 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS5659 ASSN STD SINGLE MATERIAL RESPONSE. 17 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.