The Screw,machine, cataloged under National Stock Number 5305-00-147-1985, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-147-1985 |
| Primary Part Number | 4218 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | CANCELLED |
| Head Diameter | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Length | 0.666 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Thread Quantity Per Inch | 20 |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 8740 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hole Quantity | 2 |
| Hole Diameter | 0.078 INCHES NOMINAL IN |
| Screw Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE |
| Head Style | FILLISTER |
| Fastener Length | 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN |
| Head Height | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Head Hole Configuration Style | ROUND |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4218 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5305-00-147-1985 is a Screw,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-147-1985 has 1 cross-referenced part number: 4218 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
There are 11 known substitutes for 5305-00-147-1985: 4720-00-054-6354, 5306-00-208-6283, 5920-00-258-6680 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4218: Head Diameter: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.250 INCHES IN; Thread Length: 0.666 INCHES MAXIMUM IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. 17 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-147-1985 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.