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 5855-00-327-2112
NSN 5985-01-464-4528
NSN 5920-00-161-2813
NSN 5925-00-942-4708
NSN 5950-00-961-1647
NSN 5905-01-421-9436
NSN 6645-00-589-0143
NSN 6645-00-342-5956
NSN 6320-00-036-3688
NSN 6130-01-535-7290
NSN 6135-01-286-9563
NSN 5835-01-187-8986