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 6110-01-410-7637
NSN 6105-01-632-5852
NSN 6145-01-641-4460
NSN 5920-01-415-2878
NSN 5905-01-515-7449
NSN 5835-01-068-4043
NSN 6620-00-193-9503
NSN 5975-01-423-2558
NSN 6610-01-561-5604
NSN 5975-01-027-1642
NSN 5930-00-148-9247
NSN 5910-01-456-9541