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 6220-00-981-9184
NSN 6320-01-415-0953
NSN 6110-01-014-3840
NSN 5996-00-150-8842
NSN 6645-00-954-4065
NSN 6320-01-039-5891
NSN 5985-00-226-0420
NSN 5930-01-645-6180
NSN 5895-01-035-8498
NSN 5910-01-322-7620
NSN 5950-00-565-5084
NSN 6135-01-180-4588