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 5985-00-959-3318
NSN 5998-01-046-6502
NSN 5855-00-482-9876
NSN 4140-01-469-6140
NSN 6610-01-193-2169
NSN 5950-01-013-0281
NSN 6220-00-832-6916
NSN 6130-01-030-1307
NSN 5998-00-189-1545
NSN 6620-01-098-9866
NSN 6650-00-834-9062
NSN 5905-00-474-3660