A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5905-01-048-5937
NSN 5910-00-881-6362
NSN 7035-01-040-6373
NSN 5835-01-502-9228
NSN 5975-00-941-6091
NSN 6150-01-158-4912
NSN 5945-01-341-9424
NSN 7035-00-329-4015
NSN 6685-01-539-2345
NSN 4140-00-725-7023
NSN 5960-01-117-1887
NSN 6220-00-834-2838