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 5915-01-140-1087
NSN 5925-00-351-6296
NSN 5835-01-136-3394
NSN 5925-01-446-3769
NSN 5905-01-472-2027
NSN 4140-00-155-8012
NSN 6135-00-930-5372
NSN 6610-00-912-3019
NSN 6685-01-322-0139
NSN 5915-01-447-3151
NSN 5920-01-449-6048
NSN 6105-01-466-9090