Air line pressure-demand hood type; niosh approval tc-19c-309
No other part numbers with same form, fit, and function found.
NSN 5960-01-486-8919
NSN 6130-00-080-4521
NSN 6135-00-276-7625
NSN 5999-01-170-0849
NSN 6240-01-160-7934
NSN 4140-01-575-8457
NSN 5910-01-381-1480
NSN 5835-01-412-6901
NSN 5925-01-312-4690
NSN 6145-01-113-8205
NSN 6685-01-313-9738
NSN 5925-00-559-7527