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 6135-01-462-6040
NSN 6240-01-411-5425
NSN 6685-01-634-0611
NSN 5998-01-553-9165
NSN 5965-01-272-3480
NSN 6220-01-415-5698
NSN 5990-01-213-6319
NSN 5996-01-015-4142
NSN 5910-00-679-9556
NSN 6145-00-355-6498
NSN 5965-00-170-5254
NSN 6105-01-240-9689