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 6610-00-983-4482
NSN 5950-01-232-9870
NSN 6150-01-197-0403
NSN 7035-00-153-3826
NSN 6685-01-548-1225
NSN 5920-00-509-5073
NSN 6650-01-517-9452
NSN 5985-00-646-4876
NSN 5920-01-610-8905
NSN 5985-01-624-9573
NSN 6110-00-983-5927
NSN 5930-01-605-7072