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 6130-01-260-6248
NSN 6610-01-556-2353
NSN 5945-00-476-7100
NSN 5925-01-426-6923
NSN 5999-01-435-9532
NSN 5935-00-923-4142
NSN 6645-01-316-2183
NSN 6685-00-834-0494
NSN 5996-01-247-7671
NSN 6150-01-435-4881
NSN 5925-01-103-8322
NSN 5835-01-310-8979