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 6110-00-643-4832
NSN 5965-01-099-2989
NSN 5996-00-806-8120
NSN 6685-00-317-4319
NSN 5999-01-146-4718
NSN 6320-00-295-2854
NSN 6145-01-243-6585
NSN 5915-00-089-8063
NSN 5930-01-514-0641
NSN 5895-01-122-0606
NSN 5915-01-599-1266
NSN 5990-00-491-1338