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 6240-01-160-7934
NSN 5930-01-190-8144
NSN 5915-00-908-0167
NSN 5835-00-213-9811
NSN 2925-01-315-1714
NSN 5975-01-199-7203
NSN 5855-01-444-5248
NSN 5998-01-420-6620
NSN 4140-01-013-6807
NSN 5998-00-147-9324
NSN 5965-00-942-1602
NSN 6145-01-016-0759