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 5920-00-735-0783
NSN 5895-01-269-0724
NSN 6240-00-226-0462
NSN 5905-01-353-5330
NSN 5835-01-111-0969
NSN 6610-00-714-6605
NSN 5895-01-501-6840
NSN 5895-00-485-5347
NSN 6650-01-626-9616
NSN 5935-00-351-4800
NSN 2925-01-364-7926
NSN 5998-01-360-5194