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 5855-01-120-7831
NSN 2925-00-996-2167
NSN 6130-01-110-6785
NSN 5930-01-462-5769
NSN 6685-01-592-4901
NSN 5935-01-254-4302
NSN 6145-01-423-0906
NSN 5905-00-050-3885
NSN 5895-01-079-1157
NSN 5920-01-600-8646
NSN 5855-01-548-9990
NSN 6620-01-034-1697