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 6220-01-014-4052
NSN 6610-00-905-6780
NSN 6645-01-476-8013
NSN 6150-01-438-5590
NSN 5835-01-182-1966
NSN 6320-00-894-1644
NSN 6130-00-202-4688
NSN 5965-01-311-3613
NSN 5965-01-189-4805
NSN 6320-01-414-7099
NSN 5999-01-569-2765
NSN 5950-01-461-9415