The Thumbscrew, cataloged under National Stock Number 5305-01-078-4973, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Carlisle & Finch Co. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-078-4973 |
| Primary Part Number | 6456 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Carlisle & Finch Co |
| Status | ACTIVE |
| Head Style | HEXAGON |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 24 |
| Material | COPPER ALLOY HEAD |
| Material | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 FASTENER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Thread Length | 1.167 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Head Height | 1.000 INCHES NOMINAL IN |
| Width Between Flats | 0.625 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Point Style | POINTLESS |
| Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-01-078-4973 is a Thumbscrew, manufactured by Carlisle & Finch Co, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-078-4973 has 2 cross-referenced part numbers: 4075PC76 (Carlisle & Finch Co), 6456 (Carlisle & Finch Co).
There are 9 known substitutes for 5305-01-078-4973: 4710-00-146-7543, 5305-00-290-2535, 3455-00-307-9512 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6456: Head Style: HEXAGON; Special Features: SILVER SOLDER; Fastener Length: 1.250 INCHES NOMINAL IN; Thread Quantity Per Inch: 24. 14 total characteristics are documented in the Federal Logistics Information System.