The portion of a mask, air line; mask, chemical-biological; mask, gas; or other breathing equipment mask that partially or completely encloses the user's face.
NSN 5920-01-554-4099
NSN 5975-00-239-0346
NSN 5998-00-790-1783
NSN 7035-01-145-5059
NSN 6150-00-233-6356
NSN 5855-01-302-9778
NSN 5960-01-106-0460
NSN 5985-01-018-5848
NSN 5910-01-221-9891
NSN 4140-01-081-7473
NSN 5998-01-158-2625
NSN 4140-01-579-3686