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 5920-01-113-7787
NSN 5985-01-425-1753
NSN 6610-01-606-0380
NSN 6105-01-466-9090
NSN 5945-00-945-3477
NSN 6685-01-268-0613
NSN 5975-01-416-5911
NSN 2925-01-363-5978
NSN 6150-00-068-3496
NSN 6105-01-112-8206
NSN 4140-01-501-5394
NSN 6105-00-406-4930