A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5999-01-021-7857
NSN 4140-00-137-2493
NSN 6645-00-819-5045
NSN 5925-00-379-0920
NSN 7035-01-350-4247
NSN 6320-00-228-5678
NSN 7035-01-556-2554
NSN 5835-01-126-2480
NSN 5895-01-451-4341
NSN 5990-01-570-5471
NSN 5985-01-054-6112
NSN 5855-01-273-6132