For safety relief valve
An item of various shapes (usually circular, conical, cylindrical, or rectangular) used to prevent or regulate the flow of liquids or gases through the valve. May include a retainer, screw, holder, and the like.
Classification: Parts of taps, cocks, valves and similar appliances, nesoi
NSN 5975-00-982-4465
NSN 5975-00-581-4667
NSN 5930-00-144-4994
NSN 5920-01-470-2854
NSN 6620-00-461-4934
NSN 5950-01-054-3508
NSN 5990-01-326-2677
NSN 6130-00-985-5345
NSN 6645-01-442-4032
NSN 5965-01-411-9933
NSN 6220-01-032-7370
NSN 5965-00-959-8162