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 5915-00-274-2282
NSN 6110-00-104-8009
NSN 6620-01-601-4314
NSN 6685-00-782-0215
NSN 6240-01-401-5340
NSN 5935-00-936-5281
NSN 5915-01-454-1359
NSN 5960-01-076-9930
NSN 5965-01-502-7006
NSN 5910-00-666-6174
NSN 5985-01-256-6961
NSN 6110-00-188-9874