The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-719-8553, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-719-8553 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Width Across Flats | 0.21875 INCHES NOMINAL IN |
| Head Height | 0.234 INCHES NOMINAL IN |
| Fastener Length | 1.50 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ASTM A380 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE FASTENER |
| Thread Length | 1.00 INCHES NOMINAL IN |
| Material Document and Classification | 304, S30400, COLD WORKED PER ASME B18.24-2023 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 05047-ASME B18.24-2023 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | PASSIVATE FASTENER |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 304 FASTENER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.720 INCHES MINIMUM AND 0.781 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 |
|---|---|
| 721-8216623-100 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| AES16U375A50SB8A36 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5305-01-719-8553 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-719-8553: Width Across Flats: 0.21875 INCHES NOMINAL IN; Head Height: 0.234 INCHES NOMINAL IN; Fastener Length: 1.50 INCHES NOMINAL IN; Surface Treatment Document and Classification: ASTM A380 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE FASTENER. 18 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.