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 4140-01-514-7549
NSN 6105-00-607-6053
NSN 6610-00-837-3012
NSN 5945-01-509-1199
NSN 6130-01-498-1329
NSN 6685-01-041-4407
NSN 5930-01-435-9408
NSN 7035-00-437-7950
NSN 7035-01-462-7731
NSN 5945-01-025-4256
NSN 6130-01-329-1673
NSN 5965-00-841-3628