Papr, small, blue, niosh/msha, meets ansi/ul 913 standard for intrinsically safe apparatus, mark 2 replacement part
NSN 6610-00-903-6095
NSN 6685-00-480-6538
NSN 4140-01-442-7799
NSN 6620-01-148-5191
NSN 5999-00-312-4256
NSN 6650-01-033-6667
NSN 5950-01-008-0709
NSN 7035-01-374-4044
NSN 5920-01-258-5035
NSN 6150-00-209-8026
NSN 5920-01-238-9319
NSN 5985-00-489-3693