The Screw,machine, cataloged under National Stock Number 5305-01-386-6071, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-386-6071 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| Screw Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 1.593 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 4130 |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNJC |
| Head Diameter | 0.183 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416,TYII,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 |
|---|---|
| NAS514P440-28P | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-386-6071 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-386-6071: Screw Surface Treatment: CADMIUM; Fastener Length: 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN; Screw Material Document and Classification: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE; Thread Length: 1.593 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN. 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.