The Screw,machine, cataloged under National Stock Number 5305-00-174-8633, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-174-8633 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Extended Washer Thickness | 0.030 INCHES MINIMUM IN |
| Head Height | 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN |
| Bearing Surface of Head Surface Finish | 32.0 MICROINCHES |
| Fastener Length | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Thread Length | 0.568 INCHES MINIMUM AND 0.648 INCHES MAXIMUM IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| Shank Surface Finish | 32.0 MICROINCHES |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | DOUBLE HEXAGON W/ HOLE |
| Thread Direction | RIGHT-HAND |
| Thread Surface Finish | 32.0 MICROINCHES |
| Width Between Flats | 0.219 INCHES NOMINAL IN |
| Screw Material | IRON ALLOY 660 |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 36 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| MS9555-12 | 2/2 Government specification standardization U.S. Government activity |
NSN 5305-00-174-8633 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-174-8633: Extended Washer Thickness: 0.030 INCHES MINIMUM IN; Head Height: 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN; Bearing Surface of Head Surface Finish: 32.0 MICROINCHES; Fastener Length: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN. 18 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.