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 5930-01-205-0489
NSN 5945-01-620-2424
NSN 6145-00-761-2878
NSN 5930-01-163-8959
NSN 5855-01-131-9336
NSN 5990-01-555-6616
NSN 5975-01-196-8744
NSN 5925-00-142-0752
NSN 6105-01-287-9476
NSN 6685-01-025-7422
NSN 6650-01-652-6067
NSN 5945-01-597-2142