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 5975-01-388-2752
NSN 6610-01-235-5566
NSN 6610-01-398-8815
NSN 5950-01-369-6968
NSN 6645-00-241-3280
NSN 5960-01-515-4791
NSN 5925-00-723-4176
NSN 6105-00-118-5249
NSN 5990-01-286-0601
NSN 5998-01-205-7423
NSN 5905-01-551-4683
NSN 2925-00-856-0115