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 6620-00-021-9041
NSN 6110-00-025-9920
NSN 6110-00-068-8700
NSN 7035-00-215-3272
NSN 2925-01-014-0118
NSN 5935-01-081-4384
NSN 7035-01-474-6127
NSN 6135-00-577-8429
NSN 6130-01-132-1871
NSN 5950-01-149-7020
NSN 2925-01-525-8212
NSN 6220-00-205-2040