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 5910-00-008-4608
NSN 5998-00-686-2152
NSN 6320-00-225-7013
NSN 6130-01-575-8707
NSN 5945-01-238-2184
NSN 6240-00-458-4662
NSN 5999-01-058-7852
NSN 5835-00-876-2554
NSN 2925-00-981-5977
NSN 6240-01-543-9591
NSN 5935-01-492-3818
NSN 5990-00-732-9261