The Screw,machine, cataloged under National Stock Number 5305-00-639-6959, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Briggs and Stratton Corp. Government technical data includes 14 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-639-6959 |
| Primary Part Number | 23403 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Briggs and Stratton Corp |
| Status | ACTIVE |
| Head Style | HEXAGON |
| Thread Length | 0.219 INCHES MINIMUM IN |
| Thread Quantity Per Inch | 32 |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Screw Material | STEEL COMP 1035 |
| Head Height | 0.141 INCHES NOMINAL IN |
| Width Between Flats | 0.312 INCHES NOMINAL IN |
| Minimum Tensile Strength | 170000 POUNDS PER SQUARE INCH LBS |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Screw Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 23403 PRIMARY | Briggs and Stratton Corp (USA) |
NSN 5305-00-639-6959 is a Screw,machine, manufactured by Briggs and Stratton Corp, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-639-6959 has 1 cross-referenced part number: 23403 (Briggs and Stratton Corp).
There are 9 known substitutes for 5305-00-639-6959: 4820-00-647-2328, 3455-00-971-8908, 5998-01-137-0994 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 23403: Head Style: HEXAGON; Thread Length: 0.219 INCHES MINIMUM IN; Thread Quantity Per Inch: 32; Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM. 14 total characteristics are documented in the Federal Logistics Information System.