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 6145-01-254-2935
NSN 6320-01-245-5307
NSN 6110-01-300-5995
NSN 5930-00-494-3375
NSN 6685-00-874-0752
NSN 6105-01-371-8203
NSN 5925-01-131-1695
NSN 6620-01-219-9413
NSN 5975-00-361-7793
NSN 6110-00-772-7855
NSN 5950-00-529-0599
NSN 5895-01-080-1657