The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-478-0342, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-478-0342 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Spline Minor Diameter | 0.063 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN |
| Head Height | 0.070 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Fastener Length | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| Spline Width | 0.015 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN |
| Thread Length | 0.109 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| Spline Major Diameter | 0.073 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.073 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SIX SPLINE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 64 |
| Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 303 OR STEEL COMP 303SE OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.112 INCHES MINIMUM AND 0.118 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 |
|---|---|
| 92522015000 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
| 92522015000 | 3/9 Design control — primary reference Honeywell Intl Inc Defense Avionics Systems |
NSN 5305-00-478-0342 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-478-0342: Spline Minor Diameter: 0.063 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN; Head Height: 0.070 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Fastener Length: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Spline Width: 0.015 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN. 15 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.