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 5910-00-258-0226
NSN 5985-01-067-9137
NSN 6650-00-401-7896
NSN 5905-00-115-0910
NSN 5999-01-617-0854
NSN 5930-01-585-2818
NSN 6150-01-179-9636
NSN 6150-01-571-8029
NSN 6650-00-910-2708
NSN 7035-01-464-1213
NSN 6150-01-180-0451
NSN 5925-00-614-3820