The Screw,machine, cataloged under National Stock Number 5305-01-623-9902, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-623-9902 |
| Primary Part Number | CA2227-08B-3-8 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Head Height | 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Screw Surface Treatment | OXIDE |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.406 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.1640 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Screw Material | STEEL COMP 630 |
| Internal Drive Style | CROSS RECESS TYPE II |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| CA2227-08B-3-8 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| CA2227-08B-3-8 | Howmet Global Fastening Systems Inc (USA) |
NSN 5305-01-623-9902 is a Screw,machine, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-623-9902 has 2 manufacturer part numbers on file: CA2227-08B-3-8 (Howmet Global Fastening Systems Inc. Div Tridair Products), CA2227-08B-3-8 (Howmet Global Fastening Systems Inc).
Key specifications for CA2227-08B-3-8: Head Height: 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Screw Surface Treatment: OXIDE; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Length: 0.406 INCHES NOMINAL IN. 13 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.