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 5996-00-945-0383
NSN 5855-01-531-7036
NSN 5915-01-470-0607
NSN 6645-00-510-6643
NSN 5999-01-141-6859
NSN 5905-01-463-9131
NSN 6220-01-202-7954
NSN 6130-01-540-0782
NSN 5910-01-468-6806
NSN 5935-01-140-0612
NSN 7035-00-929-0363
NSN 5960-00-739-3357