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 6650-01-367-8917
NSN 6110-01-607-6670
NSN 5915-01-418-0265
NSN 5990-01-229-3003
NSN 5855-01-277-1663
NSN 5960-00-343-2888
NSN 6645-00-230-4396
NSN 6220-00-142-5115
NSN 6220-01-367-6411
NSN 5835-00-233-6327
NSN 5996-00-268-8422
NSN 6610-00-118-9032