The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-021-7056, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-021-7056 |
| Primary Part Number | 179887 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | CANCELLED |
| Head Height | 0.375 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Style | HEXAGON |
| Thread Class | 2A A |
| Width Between Flats | 0.750 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Thread Quantity Per Inch | 11 |
| Thread Length | 1.250 INCHES MINIMUM IN |
| Fastener Length | 1.750 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 179887 | General Motors Llc Dba General Motors Llc (USA) |
| 100161 | General Motors Corp (USA) |
| 100161 | General Motors Llc Dba General Motors Llc (USA) |
| 75A39 | Cooper Industries Industrial Machinery Div (USA) |
| 179887 PRIMARY | Hatch & Kirk, Inc. (USA) |
| 179887 | General Motors Corp (USA) |
| 100161 | General Motors Corp Electro-Motive Div (USA) |
| S106 PRIMARY | Cummins Inc. (USA) |
| 75A39 | Cooper Industries Inc Dba Cooper Tools (USA) |
NSN 5305-00-021-7056 is a Screw,cap,hexagon Head, manufactured by Hatch & Kirk, Inc., classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-021-7056 has 9 cross-referenced part numbers: 179887 (General Motors Llc Dba General Motors Llc), 100161 (General Motors Corp), 100161 (General Motors Llc Dba General Motors Llc), 75A39 (Cooper Industries Industrial Machinery Div), 179887 (Hatch & Kirk, Inc.) and 4 more.
There are 12 known substitutes for 5305-00-021-7056: 4710-00-130-0290, 6150-00-201-9583, 4920-00-274-8672 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 179887: Head Height: 0.375 INCHES NOMINAL IN; Nominal Thread Diameter: 0.500 INCHES IN; Material: STEEL OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 11 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-021-7056 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.