A thin, circular, metallic or nonmetallic item with a flat or prebulged cross-sectional shape, designed to rupture at a predetermined pressure to prevent damage to hydraulic or pneumatic systems, or the like. It may include multiple pieces, such as a retainer ring, disk and vacuum support. It can be used independently or as a component part of a head, safety, pressure relief. For items furnished with a holder, see head and disk, safety, pressure relief. For items without a rupture pressure rating, see disk, solid, plain. Excludes diaphragm, valve, flat; diaphragm, valve, special shaped; disk, valve; and insulator, disk.
Classification: Parts of taps, cocks, valves and similar appliances, nesoi
NSN 6145-01-384-4218
NSN 6320-01-486-8004
NSN 6650-01-004-6702
NSN 5925-01-254-2578
NSN 6685-00-037-9635
NSN 6650-00-249-5553
NSN 5975-01-148-7259
NSN 5905-01-463-8234
NSN 5950-01-509-4215
NSN 5996-00-284-8840
NSN 5998-01-190-9626
NSN 5996-01-383-7298