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 6685-01-541-1798
NSN 6150-01-616-0471
NSN 5950-01-530-9144
NSN 6220-00-724-6191
NSN 5915-00-015-3841
NSN 6150-01-067-8616
NSN 5835-01-579-5941
NSN 4140-01-486-8261
NSN 5965-00-368-8204
NSN 6135-01-418-4156
NSN 5945-01-519-3015
NSN 6620-01-452-8418