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 materials other than copper, iron or steel
NSN 6645-01-578-6309
NSN 5998-01-476-7129
NSN 6685-01-498-1900
NSN 5930-01-381-1059
NSN 6650-00-475-2140
NSN 5855-00-912-3885
NSN 5925-01-632-0058
NSN 6645-00-222-2785
NSN 5990-00-492-5063
NSN 5935-01-226-0092
NSN 5910-01-303-9972
NSN 5985-01-406-3038