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 6610-01-213-8589
NSN 6130-01-331-0264
NSN 6105-01-068-8143
NSN 6220-00-379-4044
NSN 5960-01-387-8467
NSN 6110-01-357-0745
NSN 6130-00-176-1664
NSN 2925-01-400-2286
NSN 5965-01-266-7968
NSN 5950-01-079-1468
NSN 6620-00-961-5426
NSN 5999-01-159-4170