The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-049-4038, 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17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-049-4038 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES TOP OF HEAD |
| Width Across Flats | 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Fastener Length | 0.740 INCHES NOMINAL IN |
| Thread Length | 0.450 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.039 INCHES MINIMUM AND 0.040 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 30.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.090 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 0.238 INCHES MINIMUM AND 0.242 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 |
|---|---|
| ABC6480-1 | 3/2 Design control — primary reference U.S. Government activity |
| 918357-4C | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5305-01-049-4038 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-049-4038: Surface Finish: 32.0 MICROINCHES TOP OF HEAD; Width Across Flats: 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN; Fastener Length: 0.740 INCHES NOMINAL IN; Thread Length: 0.450 INCHES MINIMUM 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.