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 6220-01-124-3296
NSN 6105-00-580-1435
NSN 5975-01-326-5858
NSN 5960-00-398-1029
NSN 5950-00-153-1959
NSN 6135-01-438-0228
NSN 6240-00-270-4698
NSN 5920-01-634-0250
NSN 5945-01-092-8098
NSN 5998-00-156-1094
NSN 5895-00-461-4858
NSN 6685-01-425-1589