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 6240-01-485-0008
NSN 5985-00-657-8017
NSN 6130-00-126-3743
NSN 5999-01-357-7817
NSN 5905-01-543-8214
NSN 5950-01-168-8071
NSN 5915-00-914-0063
NSN 6135-01-582-5987
NSN 6105-01-351-7234
NSN 6110-00-736-0367
NSN 5965-01-220-0529
NSN 6150-01-435-4047