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 5930-01-323-5331
NSN 5905-00-587-4859
NSN 5985-01-067-6520
NSN 5999-00-537-7677
NSN 5945-01-380-9614
NSN 5990-01-476-9956
NSN 5950-01-153-0668
NSN 6130-00-125-5138
NSN 6650-01-394-6124
NSN 2925-01-600-2309
NSN 5855-01-236-9645
NSN 6145-00-275-4046