5305-00-017-9953 (106358)
NSN 5305-00-017-9953 (NIIN 00-017-9953) is a hexagon head cap screw in Federal Supply Class 5305, Screws — an externally threaded fastener designed for insertion into holes in assembled parts. Manufacturer part number 106358 (Chrysler Realty Company LLC, CAGE 12204); also referenced as FFS85TYPE2STYLE10PGRADE5 (Federal Specifications Promulgated); 179953 (General Motors LLC); S21218 (Meritor Industrial Products, LLC).
Key specs: 25 to 34 rockwell c overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required).