The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-235-5163, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-235-5163 |
| Primary Part Number | 179808 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Head Style | HEXAGON |
| Minimum Tensile Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Material Document and Classification | SAE GR 5 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Thread Quantity Per Inch | 20 |
| Thread Class | 2A A |
| Thread Direction | RIGHT-HAND |
| Fastener Length | 2.690 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN |
| Head Height | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-00-235-5163 is a Screw,cap,hexagon Head, manufactured by Hatch & Kirk, Inc., classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-235-5163 has 2 cross-referenced part numbers: 179808 (Hatch & Kirk, Inc.), 179808 (General Motors Corp Electro-Motive Div).
There is 1 known substitute for 5305-00-235-5163: 6625-00-232-9828. Verify interchangeability with system specifications before substitution.
Key specifications for 179808: Width Between Flats: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN; Head Style: HEXAGON; Minimum Tensile Strength: 120000 POUNDS PER SQUARE INCH LBS; Nominal Thread Diameter: 0.250 INCHES IN. 15 total characteristics are documented in the Federal Logistics Information System.