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 7035-01-145-5059
NSN 6685-01-574-6150
NSN 5910-01-050-8451
NSN 7035-01-123-8723
NSN 6150-00-144-1608
NSN 5835-00-413-4701
NSN 5915-01-224-7044
NSN 2925-01-560-0517
NSN 5945-00-477-3055
NSN 6220-01-418-1649
NSN 6135-01-387-0754
NSN 6685-00-311-5700