The Screw,machine, cataloged under National Stock Number 5305-01-129-4356, 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 | 5305-01-129-4356 |
| Primary Part Number | AJU83 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Head Height | 0.078 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN |
| Fastener Length | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Thread Length | 0.259 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | BINDING |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.275 INCHES MINIMUM AND 0.290 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 |
|---|---|
| AJU83 PRIMARY | Ashcroft Inc Dba Heise (USA) |
NSN 5305-01-129-4356 is a Screw,machine, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-129-4356 has 1 manufacturer part number on file: AJU83 (Ashcroft Inc Dba Heise).
Key specifications for AJU83: Head Height: 0.078 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN; Fastener Length: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; Thread Length: 0.259 INCHES MINIMUM AND 0.310 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.