The Screw,machine, cataloged under National Stock Number 5305-01-331-0655, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-331-0655 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Bearing Surface of Head Surface Finish | 32.0 MICROINCHES |
| Screw Surface Treatment | CADMIUM AND CHROMATE |
| Fastener Length | 0.699 INCHES MINIMUM AND 0.729 INCHES MAXIMUM IN |
| Thread Length | 0.339 INCHES NOMINAL IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Shank Surface Finish | 32.0 MICROINCHES |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Thread Surface Finish | 32.0 MICROINCHES |
| Specification/standard Data | 80205-NAS1218 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Screw Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORQUE-SET RIBBED |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNJC |
| Head Diameter | 0.308 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416,TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| NAS1218R08-6 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-331-0655 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-331-0655: Head Height: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN; Bearing Surface of Head Surface Finish: 32.0 MICROINCHES; Screw Surface Treatment: CADMIUM AND CHROMATE; Fastener Length: 0.699 INCHES MINIMUM AND 0.729 INCHES MAXIMUM IN. 20 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.