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 6685-00-915-2645
NSN 6685-01-163-3319
NSN 6610-00-588-7649
NSN 5910-01-334-9759
NSN 6620-00-477-7808
NSN 5998-00-483-9770
NSN 5996-01-039-2704
NSN 5945-00-518-8524
NSN 6320-00-456-0836
NSN 6685-01-425-7336
NSN 5835-01-416-6455
NSN 5975-01-319-2691