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 5965-01-222-0166
NSN 6620-01-486-8002
NSN 5930-01-012-5432
NSN 4140-00-045-8117
NSN 6145-00-337-3188
NSN 5945-01-335-1912
NSN 2925-01-125-9169
NSN 6685-01-017-3046
NSN 5835-01-158-6878
NSN 5905-00-377-9184
NSN 6220-01-130-2966
NSN 6610-01-388-0563