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 5996-00-322-5753
NSN 6105-00-479-3830
NSN 5915-01-226-2012
NSN 5855-01-444-1233
NSN 5996-01-462-3656
NSN 5999-01-539-4204
NSN 5990-00-033-8128
NSN 5960-01-502-6270
NSN 5930-01-309-5903
NSN 4140-01-476-7871
NSN 5920-01-056-5481
NSN 5945-00-224-8343