The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-253-4435, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-253-4435 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Spline Minor Diameter | 0.096 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| Head Height | 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN |
| Fastener Length | 0.490 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Spline Width | 0.023 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN |
| Thread Length | 0.440 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Spline Major Diameter | 0.115 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SIX SPLINE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.176 INCHES MINIMUM AND 0.183 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 |
|---|---|
| 903859-10 | 7/2 Vendor item drawing reference General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems |
| 903859-10 | 3/9 Design control — primary reference Bristol Babcock Canada Inc |
NSN 5305-01-253-4435 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-253-4435: Spline Minor Diameter: 0.096 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN; Head Height: 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN; Fastener Length: 0.490 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN; Spline Width: 0.023 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN. 16 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.