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 5925-01-154-0867
NSN 5998-00-936-9998
NSN 5905-00-679-0487
NSN 5930-00-622-0854
NSN 5975-01-092-7798
NSN 6110-00-774-1792
NSN 5920-00-240-6394
NSN 6685-01-534-6330
NSN 5905-00-954-2410
NSN 4140-01-070-2238
NSN 6130-01-044-5436
NSN 7035-01-052-3815