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 6610-00-456-0485
NSN 5835-01-580-0446
NSN 2925-01-134-9175
NSN 5965-00-267-4173
NSN 5999-00-901-2037
NSN 5965-00-267-4173
NSN 5855-01-469-7732
NSN 5996-00-007-5387
NSN 6320-00-110-8005
NSN 5960-00-505-1577
NSN 5950-01-586-9013
NSN 6685-00-774-6287