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 5905-00-243-2876
NSN 5975-00-480-0114
NSN 5895-01-340-5502
NSN 6135-00-913-2062
NSN 5945-01-583-5589
NSN 5920-01-367-1323
NSN 5998-00-764-2940
NSN 5999-01-259-2658
NSN 5925-01-588-6389
NSN 6150-00-918-1630
NSN 5925-00-479-8233
NSN 2925-01-027-1293