Mark 2 replacement part, niosh/msha, meets ansi/ul 913 standard for intrinsically safe apparatus
NSN 5998-01-212-0628
NSN 6130-01-373-5184
NSN 6145-01-311-0061
NSN 5950-01-501-5682
NSN 5930-01-469-6143
NSN 5985-00-274-2851
NSN 4140-01-384-7778
NSN 5960-01-460-0115
NSN 6110-01-261-1560
NSN 6220-01-285-3304
NSN 5985-00-226-6846
NSN 6685-01-520-6320