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 5985-01-503-5045
NSN 6685-01-230-7067
NSN 6685-00-953-5449
NSN 6220-00-205-2040
NSN 6220-01-230-6727
NSN 5998-00-404-6222
NSN 6645-00-901-9281
NSN 6130-00-862-5516
NSN 6220-00-103-6823
NSN 2925-00-779-3410
NSN 5975-00-290-4285
NSN 2925-01-180-7793