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 6110-01-439-5852
NSN 5950-01-099-3591
NSN 6620-00-104-6937
NSN 5920-01-549-5277
NSN 6110-01-530-4520
NSN 6145-01-090-7258
NSN 6145-01-544-8461
NSN 5930-01-256-5925
NSN 5965-00-942-1602
NSN 5855-01-659-8769
NSN 5930-00-316-5309
NSN 6105-01-359-7843