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 6685-01-170-4926
NSN 5915-01-088-8372
NSN 6110-00-409-8125
NSN 5895-00-151-3934
NSN 4140-01-250-2600
NSN 6145-00-046-4568
NSN 5925-01-357-5560
NSN 4140-00-918-5162
NSN 5925-00-926-8425
NSN 5945-00-131-9654
NSN 6645-01-059-7090
NSN 5985-01-416-2956