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 5945-00-954-2206
NSN 6645-00-108-6479
NSN 5925-00-919-8683
NSN 5945-01-011-7279
NSN 6130-01-557-3311
NSN 5930-01-515-3954
NSN 6610-00-935-7131
NSN 5895-01-088-4522
NSN 6320-00-456-0836
NSN 6130-01-530-4011
NSN 5975-01-461-4107
NSN 5990-00-409-3594