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 6130-00-192-1721
NSN 5835-01-436-6549
NSN 5910-01-394-5013
NSN 5999-01-628-1966
NSN 6610-01-555-0842
NSN 4140-01-563-8482
NSN 5930-00-406-1159
NSN 7035-00-275-5604
NSN 5999-00-251-1474
NSN 5998-00-424-1024
NSN 5925-01-209-5566
NSN 5950-01-394-5324