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 5910-01-554-6507
NSN 6320-00-242-3300
NSN 6145-00-918-3187
NSN 6145-00-409-6844
NSN 6610-01-440-9913
NSN 6135-01-222-0703
NSN 5996-01-407-3777
NSN 5965-01-317-6077
NSN 4140-01-528-8364
NSN 5895-01-519-2089
NSN 5920-01-467-2079
NSN 6220-01-202-0195