Mark 2 replacement part, 2 required, niosh/msha, meets ansi/ul 913, standard for intrinsically safe apparatus
NSN 6105-01-583-7292
NSN 6610-01-458-3119
NSN 5945-00-010-0943
NSN 5910-00-202-1056
NSN 5998-01-051-9450
NSN 5930-01-267-9929
NSN 6110-01-228-2440
NSN 5835-01-424-0054
NSN 6240-01-285-7616
NSN 7035-01-435-4009
NSN 6620-01-454-5717
NSN 5975-01-053-1331