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 5945-01-161-4615
NSN 5990-01-198-0115
NSN 2925-01-424-0235
NSN 5905-01-340-4615
NSN 6135-01-230-4399
NSN 5920-01-270-7795
NSN 6610-00-028-2222
NSN 5910-01-326-4315
NSN 5990-01-501-2579
NSN 5930-00-565-4117
NSN 6240-01-620-2450
NSN 6320-00-646-3311