Niosh/msha, meets ansi/ul 913 standard for intrinsically safe apparatus, 5 locations
NSN 6110-01-157-9341
NSN 5985-01-655-8223
NSN 6105-00-235-7982
NSN 5905-01-363-7378
NSN 5996-01-414-5167
NSN 5895-01-049-1725
NSN 6650-01-602-7567
NSN 6135-01-010-0891
NSN 6105-00-707-5962
NSN 5935-00-456-0661
NSN 5895-01-437-6925
NSN 5905-01-411-8324