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 5920-01-133-9716
NSN 6620-01-548-4212
NSN 5835-01-150-6084
NSN 5985-01-352-5296
NSN 5965-00-768-4366
NSN 5985-01-273-6740
NSN 6320-01-089-9086
NSN 7035-01-290-7174
NSN 5998-00-485-0819
NSN 5998-00-894-0904
NSN 5965-01-026-1752
NSN 5985-01-371-8161