The Screw,machine, cataloged under National Stock Number 5305-01-005-3181, 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17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-005-3181 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM AND CHROMATE |
| Fastener Length | 0.280 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Screw Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.230 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.181 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 1 TYPE AND 10S STYLE |
| Screw Material | STEEL |
| Minimum Tensile Strength | 60000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Screw Surface Treatment Document and Classification | QQ-P-416,TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES |
| 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 |
|---|---|
| FF-S-92 | 4/1 Identification reference U.S. Government activity |
| MS51849-12 | 2/2 Government specification standardization U.S. Government activity |
| 6300789-12 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 5305-01-005-3181 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-005-3181: Head Height: 0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM AND CHROMATE; Fastener Length: 0.280 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; Screw Material Document and Classification: FED STD 66 FED 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.