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 5990-01-160-6978
NSN 2925-00-888-9551
NSN 5960-01-524-8642
NSN 5905-01-519-6459
NSN 5950-01-113-4125
NSN 6610-01-085-0804
NSN 5895-01-485-0256
NSN 5895-01-082-2930
NSN 5950-01-501-6316
NSN 5990-01-231-1214
NSN 5930-01-428-2428
NSN 5985-01-528-8001