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 5950-01-146-4329
NSN 6320-01-648-5538
NSN 6685-01-596-7509
NSN 5915-01-459-8059
NSN 5996-01-280-9922
NSN 5985-01-489-7056
NSN 5965-01-433-1974
NSN 6620-00-701-1283
NSN 5960-01-341-9291
NSN 6105-00-330-0882
NSN 5950-01-535-0099
NSN 6320-00-701-0437