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 5999-01-375-7661
NSN 6130-01-549-6189
NSN 5998-01-605-0426
NSN 6105-00-504-0377
NSN 5935-00-818-9568
NSN 5895-01-577-0420
NSN 6645-01-394-5149
NSN 6145-01-390-4204
NSN 6220-00-205-2040
NSN 5999-01-373-8241
NSN 6645-01-504-3394
NSN 5910-01-515-7115