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 6105-01-611-9920
NSN 5996-01-024-9976
NSN 6320-01-265-8703
NSN 5905-00-088-9558
NSN 5945-01-447-3456
NSN 7035-00-349-8571
NSN 5905-01-515-2238
NSN 5935-00-291-4910
NSN 6620-01-194-6618
NSN 5895-01-431-7349
NSN 6685-00-556-1862
NSN 5930-00-699-1593