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 5999-01-352-5435
NSN 5910-01-288-5644
NSN 6620-01-063-9054
NSN 6610-01-608-5285
NSN 5835-01-515-6537
NSN 6650-00-862-7143
NSN 6145-00-952-2872
NSN 5999-01-448-9520
NSN 5998-01-093-2351
NSN 5985-00-943-5751
NSN 6220-01-074-9657
NSN 5985-01-462-1845