The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-656-0194, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-656-0194 |
| Primary Part Number | MASH02018SCP |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Width Across Flats | 0.218 INCHES NOMINAL IN |
| Head Height | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Fastener Length | 1.120 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 1.119 INCHES MINIMUM AND 1.129 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OR CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 4037 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.429 INCHES MINIMUM AND 0.437 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 |
| Part Number | Manufacturer |
|---|---|
| 9054030 | Us Army Aviation and Missile Command (USA) |
| MASH02018SCP PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
| Reference | Meaning |
|---|---|
| MASH02018SCP | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 5305-00-656-0194 is a Screw,cap,socket Head, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-656-0194 has 2 manufacturer part numbers on file: 9054030 (Us Army Aviation and Missile Command), MASH02018SCP (Honeywell Intl Inc Defense Avionics Systems).
Key specifications for MASH02018SCP: Width Across Flats: 0.218 INCHES NOMINAL IN; Head Height: 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Fastener Length: 1.120 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 FED SPEC ALL TREATMENT RESPONSES OVERALL. 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.