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 5935-01-158-4824
NSN 6105-00-437-2623
NSN 5910-01-260-3982
NSN 5905-00-065-8850
NSN 5985-01-421-1177
NSN 6685-00-103-9589
NSN 5965-00-983-1815
NSN 5975-01-180-6018
NSN 6150-00-813-9422
NSN 6220-01-655-8716
NSN 7035-01-462-0516
NSN 6320-00-360-1744