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 5905-00-642-1239
NSN 5855-00-949-8143
NSN 6610-01-512-2025
NSN 5965-01-144-9699
NSN 5945-01-215-0710
NSN 5985-00-218-1356
NSN 5975-00-004-6522
NSN 5855-01-502-9403
NSN 5999-01-188-8316
NSN 5925-00-286-8502
NSN 5925-01-481-3442
NSN 6145-00-419-0550