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 5996-00-699-4468
NSN 5990-01-336-3976
NSN 5895-00-263-3983
NSN 5945-00-905-5749
NSN 5996-01-167-8914
NSN 6145-01-384-6003
NSN 5990-01-293-4817
NSN 5975-01-100-5088
NSN 5996-01-360-3640
NSN 6620-01-098-9866
NSN 6105-00-480-1663
NSN 5975-01-507-9144