Sole source required by statute 6.302; large; dual filter/cartridge style
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 5935-00-934-0237
NSN 5965-00-913-9545
NSN 5998-01-324-8060
NSN 5960-01-503-0362
NSN 6240-01-486-8317
NSN 5999-00-233-5060
NSN 6610-01-633-8931
NSN 5935-00-900-0852
NSN 5960-01-391-1308
NSN 6610-00-419-7844
NSN 7035-01-633-9537
NSN 6135-00-738-5571