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 5999-01-439-9348
NSN 5910-01-544-0343
NSN 6685-01-506-8818
NSN 5990-00-934-3145
NSN 5999-01-114-9114
NSN 5910-00-156-7293
NSN 5930-00-328-2395
NSN 5910-01-158-4713
NSN 6105-01-567-5653
NSN 5925-01-179-4774
NSN 5910-01-258-4887
NSN 6610-01-229-2424