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 5945-01-311-4650
NSN 5835-01-160-7282
NSN 7035-01-336-0464
NSN 6135-00-862-5736
NSN 6105-01-492-3455
NSN 5855-01-382-8725
NSN 5950-01-461-8538
NSN 5915-01-437-6552
NSN 7035-00-470-4977
NSN 6685-01-232-5882
NSN 6110-01-029-3403
NSN 6150-01-152-2650