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 5945-01-634-0588
NSN 5910-00-054-5508
NSN 6105-00-880-7052
NSN 6150-00-987-5809
NSN 4140-01-552-0001
NSN 5930-01-524-0078
NSN 5998-01-044-4185
NSN 5990-01-370-7912
NSN 6135-01-026-9960
NSN 5930-01-487-2485
NSN 6645-01-548-3934
NSN 5960-01-385-9361