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 7035-01-472-1999
NSN 6645-00-574-9712
NSN 6130-01-127-7304
NSN 5925-01-128-6694
NSN 2925-00-391-0331
NSN 5910-01-519-3043
NSN 6105-01-288-7611
NSN 6320-00-731-6134
NSN 5920-01-452-4957
NSN 2925-01-283-6740
NSN 5990-01-426-7350
NSN 5950-01-376-4438