Third end is bulkhead type ms33657
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.
Classification: Check valves of steel
NSN 4140-01-471-7193
NSN 6105-01-027-1135
NSN 5925-01-089-9627
NSN 5945-00-065-3272
NSN 5965-01-617-5557
NSN 4140-01-067-8986
NSN 2925-01-520-4194
NSN 6610-00-251-0369
NSN 5905-01-061-7097
NSN 5910-01-236-4304
NSN 6150-01-034-7011
NSN 5965-00-726-3168