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 5910-01-412-4340
NSN 6650-00-498-2416
NSN 6150-00-054-4685
NSN 6130-01-361-5171
NSN 5999-01-146-5436
NSN 5835-01-024-3653
NSN 5960-00-608-6711
NSN 7035-00-079-7189
NSN 5945-01-312-3323
NSN 2925-01-372-9455
NSN 5920-00-983-3571
NSN 6685-00-186-9190