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 5855-00-494-9581
NSN 5925-01-596-2796
NSN 5895-00-880-3568
NSN 2925-00-228-4021
NSN 6240-01-385-8489
NSN 6145-01-532-4764
NSN 6685-01-327-3627
NSN 5998-01-585-1142
NSN 2925-01-164-9579
NSN 5996-01-525-7628
NSN 5930-00-120-2554
NSN 6320-01-412-2973