The Screw,machine, cataloged under National Stock Number 5305-01-137-7029, 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17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-137-7029 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Thread Length | 0.338 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1581 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Screw Material | IRON ALLOY 660 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORQUE SET |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.258 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-35 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 |
|---|---|
| 5305PL2143885 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| NAS1581C3T9 | 3/2 Design control — primary reference U.S. Government activity |
| 10369433 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5305-01-137-7029 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-137-7029: Screw Surface Treatment: PASSIVATE; Fastener Length: 0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN; Thread Length: 0.338 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN; Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM. 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.