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 5915-01-111-1897
NSN 6105-00-264-3822
NSN 5930-01-026-4566
NSN 6645-01-052-4069
NSN 6650-01-570-0430
NSN 5945-01-475-7174
NSN 5935-00-288-5973
NSN 5835-01-313-3375
NSN 5855-01-062-5655
NSN 5945-00-439-3579
NSN 6130-01-517-9550
NSN 5855-00-125-0780