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 5996-01-474-6203
NSN 6685-00-269-3729
NSN 5985-01-585-8534
NSN 5975-01-218-6642
NSN 5998-00-177-7941
NSN 4140-01-624-1218
NSN 6685-01-165-0576
NSN 6645-01-053-3185
NSN 4140-01-208-7480
NSN 6145-00-789-7736
NSN 5925-01-448-9590
NSN 5910-01-310-6025