The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-488-6548, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-488-6548 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Width Across Flats | 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Head Height | 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN |
| Fastener Length | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.434 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | STRIP THREADS |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 75000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OR STEEL COMP 302 OR STEEL COMP 304 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.218 INCHES MINIMUM AND 0.226 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 |
|---|---|
| 99-4754-05 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-488-6548 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-488-6548: Width Across Flats: 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN; Head Height: 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN; Fastener Length: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.