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 5835-00-113-6090
NSN 6685-01-146-4498
NSN 5985-01-464-5302
NSN 5960-01-159-8107
NSN 6150-00-361-9880
NSN 5999-01-096-8892
NSN 5965-01-250-8542
NSN 5905-01-007-2119
NSN 6685-00-305-0449
NSN 5920-01-413-8513
NSN 5999-01-551-3091
NSN 6130-00-170-4062