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 5990-01-400-3299
NSN 5910-01-485-3636
NSN 7035-01-232-2657
NSN 5996-00-323-1294
NSN 5998-01-326-3171
NSN 5895-01-042-8113
NSN 5895-00-155-4578
NSN 4140-00-823-9194
NSN 6240-00-297-3919
NSN 6150-01-526-9774
NSN 5996-01-399-6677
NSN 6150-01-458-4624