Breathing valve with by-pass hose, meets niosh approval for intrinsically safe apparatus
NSN 6610-01-542-2276
NSN 5990-01-146-9126
NSN 5855-01-290-3248
NSN 6220-00-782-2058
NSN 5930-01-303-4913
NSN 5945-01-422-4565
NSN 5835-01-641-0073
NSN 6685-01-631-4225
NSN 5975-00-276-7559
NSN 5950-01-335-0677
NSN 5996-01-199-6733
NSN 6650-01-389-9212