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 6105-01-526-9675
NSN 5855-01-508-4654
NSN 6610-01-506-0044
NSN 6145-01-527-6835
NSN 4140-01-216-5118
NSN 5945-00-564-6979
NSN 5905-01-348-5759
NSN 5965-00-763-5538
NSN 5945-01-267-1054
NSN 6145-01-535-7062
NSN 6220-01-179-6242
NSN 6130-01-141-7419