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 5975-01-065-0985
NSN 6145-01-555-4409
NSN 5925-00-496-9318
NSN 5996-01-470-1404
NSN 5895-00-475-9274
NSN 5985-01-100-3471
NSN 5920-01-343-4701
NSN 5935-01-014-6185
NSN 6645-01-179-0243
NSN 6685-01-524-5302
NSN 2925-00-678-5502
NSN 5930-00-222-4721