The Screw,machine, cataloged under National Stock Number 5305-00-054-4881, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Unison Industries Llc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-054-4881 |
| Primary Part Number | PM-21415 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Unison Industries Llc |
| Status | ACTIVE |
| Thread Class | 2A A |
| Thread Series Designator | UNF |
| Thread Length | 0.500 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN |
| Screw Material | STEEL |
| Thread Quantity Per Inch | 32 |
| Thread Direction | RIGHT-HAND |
| Head Style | FILLISTER |
| Head Diameter | 0.308 INCHES MINIMUM AND 0.318 INCHES MAXIMUM IN |
| Internal Drive Style | SLOT |
| Head Height | 0.113 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Screw Surface Treatment | CADMIUM AND CHROMATE |
| Fastener Length | 1.875 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-00-054-4881 is a Screw,machine, manufactured by Unison Industries Llc, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-054-4881 has 5 cross-referenced part numbers: 21415 (Unison Industries Llc), 21415 (Mason Electric Co. Dba Mason Controls), 21415 (Amphenol Corp Div Amphenol Aerospace Operations), 9042144-1 (Unison Industries Llc), PM-21415 (Unison Industries Llc).
There are 8 known substitutes for 5305-00-054-4881: 3740-00-354-8319, 5970-00-616-6341, 7490-00-920-0873 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for PM-21415: Thread Class: 2A A; Thread Series Designator: UNF; Thread Length: 0.500 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN; Screw Material: STEEL. 14 total characteristics are documented in the Federal Logistics Information System.