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 5945-00-578-9788
NSN 6110-00-307-8480
NSN 5895-01-464-4164
NSN 5998-01-359-1371
NSN 6240-01-422-3089
NSN 7035-01-150-6303
NSN 5895-01-035-4731
NSN 5965-00-752-1007
NSN 6105-00-489-9140
NSN 5945-00-394-6869
NSN 5915-00-518-1644
NSN 6105-01-229-4833