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 5945-00-946-6803
NSN 5996-01-440-8935
NSN 5996-01-448-6814
NSN 7035-01-261-9850
NSN 2925-01-332-7178
NSN 6110-00-828-0514
NSN 6130-01-433-9454
NSN 5915-01-110-6695
NSN 5930-00-079-3976
NSN 6620-00-905-6590
NSN 5998-00-462-0636
NSN 6220-00-141-6150