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 5985-01-628-3599
NSN 6105-01-483-5405
NSN 5925-01-371-5282
NSN 6685-01-085-5977
NSN 5950-01-496-0896
NSN 6105-01-585-1144
NSN 5905-01-531-3941
NSN 6130-00-939-8862
NSN 6650-01-044-6377
NSN 6320-01-176-8367
NSN 4140-00-113-8215
NSN 6220-01-587-3314