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 6610-00-911-8296
NSN 5895-01-544-0380
NSN 5975-01-582-4484
NSN 6320-01-377-5701
NSN 5835-01-491-4613
NSN 5996-01-438-0253
NSN 6240-00-389-4822
NSN 5965-01-609-4021
NSN 5975-01-181-8328
NSN 6685-00-221-5750
NSN 5985-00-165-1779
NSN 6620-01-479-2352