The Screw,machine, cataloged under National Stock Number 5305-00-004-0426, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mason Electric Co. Dba Mason Controls. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-004-0426 |
| Primary Part Number | 21764 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Mason Electric Co. Dba Mason Controls |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Style | PAN NO. 2 |
| Thread Class | 2A A |
| Screw Material | STEEL |
| Thread Length | 0.500 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Thread Quantity Per Inch | 40 |
| Internal Drive Style | SLOT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-00-004-0426 is a Screw,machine, manufactured by Mason Electric Co. Dba Mason Controls, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-004-0426 has 3 cross-referenced part numbers: 21764 (Mason Electric Co. Dba Mason Controls), 21764 (Amphenol Corp Div Amphenol Aerospace Operations), 21764 (Unison Industries Llc).
There are 4 known substitutes for 5305-00-004-0426: 3455-00-232-4094, 5999-00-374-0826, 4820-01-140-2087 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21764: Thread Direction: RIGHT-HAND; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Head Style: PAN NO. 2; Thread Class: 2A A. 11 total characteristics are documented in the Federal Logistics Information System.