The Screw,machine, cataloged under National Stock Number 5305-00-487-5773, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 12 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 | 5305-00-487-5773 |
| Primary Part Number | BAH44 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Head Height | 0.086 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN |
| Fastener Length | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN |
| Thread Length | 0.286 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Screw Material | COPPER ALLOY |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNF |
| Head Diameter | 0.211 INCHES MINIMUM AND 0.217 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 |
|---|---|
| BAH44 PRIMARY | Ashcroft Inc Dba Heise (USA) |
NSN 5305-00-487-5773 is a Screw,machine, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-487-5773 has 1 manufacturer part number on file: BAH44 (Ashcroft Inc Dba Heise).
Key specifications for BAH44: Head Height: 0.086 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN; Fastener Length: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN; Thread Length: 0.286 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.138 INCHES IN. 12 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.