The Screw,machine, cataloged under National Stock Number 5305-01-251-6964, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Controls Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-251-6964 |
| Primary Part Number | 478441-01 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Bae Systems Controls Inc |
| Status | ACTIVE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 1.255 INCHES NOMINAL IN |
| Thread Length | 1.255 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| 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 |
|---|---|
| 478441-01 PRIMARY | Bae Systems Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 478441-01 | 5/9 Secondary reference Ambitech Inc |
| 478441-01 | 5/9 Secondary reference Printed Circuits Inc |
| 478441-01 | 5/9 Secondary reference Benchmark Technology Inc |
NSN 5305-01-251-6964 is a Screw,machine, manufactured by Bae Systems Controls Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-251-6964 has 1 manufacturer part number on file: 478441-01 (Bae Systems Controls Inc).
Key specifications for 478441-01: Screw Surface Treatment: PASSIVATE; Fastener Length: 1.255 INCHES NOMINAL IN; Thread Length: 1.255 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.