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 5975-01-386-9456
NSN 6130-01-181-5475
NSN 6685-01-134-3001
NSN 5835-01-512-4834
NSN 5965-00-897-5560
NSN 5950-00-947-0363
NSN 6105-01-454-3377
NSN 6145-01-061-9503
NSN 5985-01-112-0455
NSN 5920-01-466-4392
NSN 6220-01-250-7228
NSN 5965-01-253-0451