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 5835-01-367-4330
NSN 5835-00-494-8419
NSN 5915-00-315-3583
NSN 5905-00-173-2813
NSN 5998-00-269-5444
NSN 5930-01-424-5844
NSN 5835-00-711-3371
NSN 5835-00-853-7785
NSN 6685-01-448-8171
NSN 5855-01-160-3802
NSN 7035-00-495-2137
NSN 5945-01-377-5804