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 6130-01-546-6378
NSN 6150-00-978-4305
NSN 5998-01-079-7023
NSN 6240-01-224-7656
NSN 6135-01-093-7426
NSN 5965-00-548-4287
NSN 5855-01-062-5655
NSN 6685-01-222-5556
NSN 6610-01-592-4150
NSN 5920-00-566-7047
NSN 6620-00-586-6460
NSN 5985-01-144-2975