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 5905-01-477-4430
NSN 2925-00-233-5644
NSN 5935-00-246-5280
NSN 5965-01-170-5705
NSN 5925-00-814-4088
NSN 6150-00-596-9253
NSN 5910-00-313-6392
NSN 6105-01-452-1020
NSN 5985-01-152-2022
NSN 6220-01-265-7144
NSN 6150-01-181-6422
NSN 5998-01-457-9413