The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-172-3272, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Actuation Systems Ltd. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-172-3272 |
| Primary Part Number | FHS1779/20/A/0 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Goodrich Actuation Systems Ltd |
| Status | ACTIVE |
| Head Height | 0.112 INCHES NOMINAL IN |
| Fastener Length | 0.200 INCHES NOMINAL IN |
| Thread Length | 0.200 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Thread Quantity Per Inch | 40 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.188 INCHES NOMINAL 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 |
|---|---|
| FHS1779/20/A/0 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| FHS1779/20/A/0 | B & B Specialties Inc (USA) |
| FHS1779/20/A/0 PRIMARY | Goodrich Actuation Systems Ltd (GBR) |
| Reference | Meaning |
|---|---|
| FHS1779/20/A/0 | 3/9 Design control — primary reference Claverham Ltd |
NSN 5305-01-172-3272 is a Screw,cap,socket Head, manufactured by Goodrich Actuation Systems Ltd, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-172-3272 has 3 manufacturer part numbers on file: FHS1779/20/A/0 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), FHS1779/20/A/0 (B & B Specialties Inc), FHS1779/20/A/0 (Goodrich Actuation Systems Ltd).
Key specifications for FHS1779/20/A/0: Head Height: 0.112 INCHES NOMINAL IN; Fastener Length: 0.200 INCHES NOMINAL IN; Thread Length: 0.200 INCHES NOMINAL IN; Nominal Thread Diameter: 0.112 INCHES IN. 11 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.