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 6130-01-572-5818
NSN 6240-01-312-6281
NSN 5965-01-188-8530
NSN 5910-01-403-2812
NSN 5835-01-515-6537
NSN 6150-01-495-5230
NSN 5998-00-971-9055
NSN 6685-01-236-6292
NSN 5925-01-228-7394
NSN 6220-01-624-8953
NSN 5905-00-611-4303
NSN 6320-00-731-6134