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 6650-00-431-8146
NSN 5985-01-422-1552
NSN 6130-01-208-3938
NSN 5915-01-044-4480
NSN 6150-01-020-2569
NSN 5945-01-393-2568
NSN 6150-00-054-4685
NSN 5985-00-932-4820
NSN 5945-01-136-2341
NSN 5925-00-399-5055
NSN 5915-01-238-9971
NSN 6110-01-411-6608