A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.
Classification: Check valves of steel
NSN 5835-01-163-4215
NSN 5999-00-080-2117
NSN 6110-01-500-0768
NSN 5960-00-681-0395
NSN 5975-01-279-7544
NSN 5930-01-250-2780
NSN 5990-01-633-9503
NSN 4140-01-067-8242
NSN 6645-00-403-6068
NSN 6610-01-557-1486
NSN 6620-00-739-4874
NSN 6610-01-512-2025