The Screw,machine, cataloged under National Stock Number 5305-01-044-8206, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Abscoa Industries Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-044-8206 |
| Primary Part Number | AB2563A8 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Abscoa Industries Inc |
| Status | ACTIVE |
| Head Height | 0.125 INCHES NOMINAL IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Screw Material Document and Classification | MIL-S-7493 FED SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 0.312 INCHES NOMINAL IN |
| Hardness Rating | 38.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Features Provided | FLAT WASHER AND O RING |
| Head Style | WATERTIGHT |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 4620 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNF |
| Head Diameter | 0.438 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 |
|---|---|
| AB2563A8 PRIMARY | Abscoa Industries Inc (USA) |
NSN 5305-01-044-8206 is a Screw,machine, manufactured by Abscoa Industries Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-044-8206 has 1 manufacturer part number on file: AB2563A8 (Abscoa Industries Inc).
Key specifications for AB2563A8: Head Height: 0.125 INCHES NOMINAL IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.500 INCHES NOMINAL IN; Screw Material Document and Classification: MIL-S-7493 FED SPEC SINGLE MATERIAL RESPONSE. 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.