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 5910-00-624-3872
NSN 5905-01-383-6876
NSN 5920-01-033-4891
NSN 4140-01-123-8312
NSN 5996-01-183-9053
NSN 5945-01-302-2302
NSN 5920-01-006-9821
NSN 5996-01-542-8611
NSN 6610-00-127-3493
NSN 5999-00-672-5807
NSN 6130-01-655-3770
NSN 4140-00-277-6285