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 5985-00-721-4303
NSN 5965-01-131-9778
NSN 5930-01-007-7636
NSN 5945-01-103-9320
NSN 6320-01-648-5538
NSN 5905-01-393-4413
NSN 5935-00-420-0608
NSN 6320-01-630-7629
NSN 5910-00-642-5577
NSN 5996-00-835-1468
NSN 5925-01-470-8778
NSN 5975-01-312-0085