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 6105-00-990-8707
NSN 5999-00-492-2922
NSN 5895-01-463-8583
NSN 5945-00-136-1877
NSN 5996-01-257-7542
NSN 4140-01-025-0923
NSN 5905-00-441-0630
NSN 6105-00-231-9317
NSN 6685-01-165-6997
NSN 5905-00-189-2497
NSN 5960-01-491-9916
NSN 6320-00-070-4544