The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-021-4002, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bath Iron Works Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-021-4002 |
| Primary Part Number | 6S8 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Bath Iron Works Corporation |
| Status | ACTIVE |
| Thread Length | 0.750 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Hardness Rating | 100.0 ROCKWELL B MAXIMUM OVERALL |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Thread Quantity Per Inch | 20 |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Head Style | HEXAGON |
| Thread Class | 2A A |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Width Between Flats | 0.438 INCHES NOMINAL IN |
| Head Height | 0.188 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 6S8 PRIMARY | Bath Iron Works Corporation (USA) |
| 214002 | General Motors Corp (USA) |
| 214002 | General Motors Llc Dba General Motors Llc (USA) |
| 143177 | General Motors Llc Dba General Motors Llc (USA) |
| 143177 | General Motors Corp (USA) |
| 76771 | Stewart-Warner Corporation (USA) |
| SP502 | Vickers Inc (USA) |
NSN 5305-00-021-4002 is a Screw,cap,hexagon Head, manufactured by Bath Iron Works Corporation, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-021-4002 has 7 cross-referenced part numbers: 6S8 (Bath Iron Works Corporation), 214002 (General Motors Corp), 214002 (General Motors Llc Dba General Motors Llc), 143177 (General Motors Llc Dba General Motors Llc), 143177 (General Motors Corp) and 2 more.
There are 5 known substitutes for 5305-00-021-4002: 5340-00-375-2723, 2920-00-741-1795, 7690-01-150-5827 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6S8: Thread Length: 0.750 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES IN; Hardness Rating: 100.0 ROCKWELL B MAXIMUM OVERALL; Material: STEEL OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.