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 7035-01-083-0282
NSN 6145-00-787-7313
NSN 6110-00-345-8007
NSN 5915-00-518-4656
NSN 6685-00-043-3739
NSN 7035-01-187-0266
NSN 7035-00-455-7666
NSN 5910-01-213-2372
NSN 5965-01-160-7037
NSN 7035-01-604-3032
NSN 5950-01-038-1333
NSN 6145-01-099-2682