Mark 2 re placement part, niosh/msha, meets ansi/ul 913 standard for intrinsically safe apparatus
NSN 6240-01-484-4288
NSN 6105-00-227-1412
NSN 4140-01-111-7416
NSN 5985-01-491-9679
NSN 5975-00-758-2109
NSN 6150-00-409-0541
NSN 5975-01-643-5607
NSN 5930-01-359-3310
NSN 5930-01-447-2837
NSN 6105-01-338-9725
NSN 5915-00-644-5735
NSN 5920-01-112-2446