Polytetrafluoroethylene coated
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 6130-01-306-8971
NSN 5990-00-170-4239
NSN 6110-01-238-6906
NSN 6110-01-656-6521
NSN 5855-01-007-9541
NSN 6220-01-557-3313
NSN 5960-01-518-4440
NSN 5945-00-985-0559
NSN 5960-01-185-0922
NSN 6150-00-865-5270
NSN 4140-00-062-1335
NSN 4140-00-946-2705