The Screw,machine, cataloged under National Stock Number 5305-00-899-1934, 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16 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-899-1934 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Screw Surface Treatment | CADMIUM AND CHROMATE |
| Fastener Length | 1.586 INCHES NOMINAL IN |
| Screw Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.649 INCHES MINIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP H11 |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNF |
| Head Diameter | 1.007 INCHES MINIMUM AND 1.017 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 |
|---|---|
| 66117H8A15 | 3/2 Design control — primary reference U.S. Government activity |
| 66117H8A15 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 66117H8-15 | 5/2 Secondary reference U.S. Government activity |
| 66117H8-15 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5305-00-899-1934 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-899-1934: Screw Surface Treatment: CADMIUM AND CHROMATE; Fastener Length: 1.586 INCHES NOMINAL IN; Screw Material Document and Classification: AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.649 INCHES MINIMUM 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.