The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-734-1693, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-734-1693 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Width Across Flats | 0.188 INCHES NOMINAL IN |
| Head Height | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Fastener Length | 0.47 INCHES MINIMUM AND 0.50 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-DTL-13924, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.47 INCHES MINIMUM AND 0.50 INCHES MAXIMUM IN |
| Material Document and Classification | FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.2500 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1351 NATIONAL STD/SPEC |
| Locking Feature | SELF-LOCKING OVERALL |
| Surface Treatment | BLACK OXIDE OVERALL |
| Chamfer Angle | 30.0 DEGREES MINIMUM AND 45.0 DEGREES MAXIMUM |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNRF |
| Head Diameter | 0.365 INCHES MINIMUM AND 0.375 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 |
|---|---|
| NAS1351-4LE8 | 3/2 Design control — primary reference U.S. Government activity |
| 68-01-1050FAW | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| NAS1351 | 3/1 Design control — primary reference U.S. Government activity |
| 512-8843578-41 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| LOA043286-41 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| R6437002-41 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5305-01-734-1693 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-734-3465. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-734-1693: Width Across Flats: 0.188 INCHES NOMINAL IN; Head Height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Fastener Length: 0.47 INCHES MINIMUM AND 0.50 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-DTL-13924, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 19 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.