2920-12-320-5577

4820-17-121-1261 4820171211261 171211261 is 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.

4240-66-121-1261 4240661211261 661211261 RING,THREADED

1560-00-121-1261 1560001211261 001211261

5365-01-121-1261 5365011211261 011211261 SPACER,GEAR LOCK EL

5998-13-121-1261 5998131211261 131211261 is a printed wiring board having only printed electronic components, such as capacitors, resistors, and the like. for items having a complete individual electrical/electronic function, use applicable item name, such as amplifier (as modified); power supply; or the like. for items not having a complete individual electrical/electronic function, see applicable "subassembly" name, such as amplifier subassembly; power supply subassembly; or the like. for items having separately manufactured components (other than plug-in connecting facilities) and not having a more specific item name, see circuit card assembly.