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 6320-01-166-3602
NSN 5985-01-167-9358
NSN 5895-01-406-4294
NSN 5910-00-572-6004
NSN 5950-00-698-3925
NSN 5960-00-809-7852
NSN 5975-01-376-6480
NSN 5945-00-497-1566
NSN 5905-00-263-0577
NSN 5990-01-386-5561
NSN 5855-01-325-9507
NSN 6105-00-596-9962