5305-00-208-3553 (730472PC1)
NSN 5305-00-208-3553 (NIIN 00-208-3553) is a setscrew in Federal Supply Class 5305, Screws — an externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone. Manufacturer part number 730472PC1 (Navair And Navsea Managed Original, CAGE 10001); also referenced as FFS103TYPE3STYLE3 (Federal Specifications Promulgated).
Key specs: 45 to 53 rockwell c overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required). Related NSN 5305-00-725-3501.