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 5950-01-167-8616
NSN 6105-01-366-0560
NSN 5915-01-333-0612
NSN 5999-00-053-1705
NSN 5985-01-178-4406
NSN 5930-00-321-0587
NSN 5996-00-900-5251
NSN 5895-00-126-9104
NSN 6610-01-096-4601
NSN 5965-01-571-0309
NSN 6650-01-373-1580
NSN 6620-01-499-7705