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 6685-01-020-5635
NSN 6650-01-014-5990
NSN 6145-01-430-4697
NSN 6320-00-521-9350
NSN 5950-00-013-7389
NSN 5996-01-265-3657
NSN 6105-01-228-3388
NSN 7035-01-472-1999
NSN 6645-01-609-4753
NSN 6105-00-959-5468
NSN 6105-00-935-5256
NSN 5998-00-320-5679