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 6650-00-211-6302
NSN 5905-01-561-0983
NSN 5910-01-184-5357
NSN 6145-01-067-8419
NSN 6105-01-429-4657
NSN 6130-00-492-7239
NSN 7035-01-604-6735
NSN 5835-00-933-9609
NSN 6320-01-372-2796
NSN 5975-00-087-6640
NSN 6320-01-125-3361
NSN 5905-01-152-1226