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 6650-01-068-3997
NSN 7035-01-423-8343
NSN 6620-01-209-1472
NSN 6105-01-155-6962
NSN 5920-01-531-4575
NSN 6145-00-951-2327
NSN 5835-01-074-7593
NSN 6685-01-398-9099
NSN 5960-01-168-9631
NSN 2925-01-170-1089
NSN 6135-01-461-2915
NSN 6320-01-246-4390