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 5945-00-850-9873
NSN 5950-01-414-8706
NSN 6135-00-891-4944
NSN 6610-01-319-5039
NSN 5910-01-535-1028
NSN 5998-01-519-2521
NSN 6610-01-445-7120
NSN 6150-01-187-4255
NSN 6320-01-232-4664
NSN 6220-00-147-7064
NSN 5930-01-160-8427
NSN 6685-01-357-6358