The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-059-7438, 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17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-059-7438 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN |
| Fastener Length | 1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-81562 TY2 CL3 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 1.376 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Material Document and Classification | 66 FED STD 1ST MATERIAL RESPONSE OR QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Nondefinitive Spec/std Data | 3 TYPE AND 9C STYLE |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 60000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.256 INCHES MINIMUM AND 0.270 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 |
|---|---|
| LK21090-0630 | 5/9 Secondary reference Torkon Fastener Corp |
| MS21090-0630 | 2/2 Government specification standardization U.S. Government activity |
| FF-S-92 | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-059-7438 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-059-7438: Head Height: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN; Fastener Length: 1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-81562 TY2 CL3 MIL SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Length: 1.376 INCHES MINIMUM AND 1.500 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.