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 5996-00-003-1370
NSN 6320-00-456-2092
NSN 5945-00-286-8594
NSN 4140-00-164-6832
NSN 5999-00-203-5573
NSN 5835-01-504-0837
NSN 2925-01-299-6967
NSN 6320-01-335-8336
NSN 6240-00-567-4795
NSN 6685-00-938-0435
NSN 5965-01-237-3342
NSN 5895-01-371-0570