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 5965-00-518-0958
NSN 6110-00-227-0578
NSN 6620-01-288-4922
NSN 5960-01-041-3048
NSN 6220-00-386-0997
NSN 6645-01-466-0604
NSN 6220-01-141-6900
NSN 5950-01-212-7974
NSN 2925-01-437-9041
NSN 5915-00-528-7992
NSN 6685-00-196-5592
NSN 5905-01-139-5053