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 5835-01-629-2044
NSN 5950-01-307-2438
NSN 5996-01-513-9656
NSN 6685-01-539-5808
NSN 5998-01-451-3735
NSN 5998-01-145-4426
NSN 5935-00-445-1560
NSN 5930-00-890-4535
NSN 6145-01-556-8015
NSN 7035-01-597-4180
NSN 5999-00-138-7173
NSN 5905-01-654-6411