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 5920-01-570-3321
NSN 6645-00-912-6245
NSN 5855-00-560-0110
NSN 5996-00-316-5115
NSN 6685-01-383-6522
NSN 5998-01-420-1312
NSN 5999-00-311-4347
NSN 5925-01-531-6492
NSN 5835-00-632-8621
NSN 6105-01-447-2984
NSN 6130-01-580-1281
NSN 5975-01-534-8245