Materials: the union type safety head is to be of 300 series stainless steel; the disc is to be of aluminum with a polytetrafluoroethylene coating on the atmospheric side
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 5915-00-814-9559
NSN 5975-01-025-3602
NSN 6620-00-246-6448
NSN 6645-01-121-0530
NSN 5998-01-032-5949
NSN 5920-01-240-0219
NSN 5915-01-138-5957
NSN 5950-01-370-2775
NSN 5905-01-499-1031
NSN 6110-01-494-3846
NSN 5895-01-055-3413
NSN 6240-01-506-2059