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 6130-01-057-1199
NSN 4140-01-460-9575
NSN 6105-01-634-0322
NSN 5975-01-500-9520
NSN 6220-01-423-1654
NSN 5950-00-144-4139
NSN 6610-01-105-0399
NSN 5925-01-584-7898
NSN 5998-01-414-6102
NSN 5945-00-104-5922
NSN 7035-00-679-9027
NSN 5945-01-463-0146