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 6220-01-218-5164
NSN 6220-01-484-9102
NSN 4140-01-364-0109
NSN 6685-01-476-8560
NSN 5985-01-550-9852
NSN 6135-01-379-1697
NSN 4140-01-042-9066
NSN 6220-01-628-1755
NSN 5925-01-416-9204
NSN 5975-00-958-9713
NSN 5855-01-459-9254
NSN 4140-01-079-1146