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 5895-01-191-6716
NSN 5935-01-627-8839
NSN 6130-00-947-3710
NSN 2925-01-523-3607
NSN 5965-01-432-7134
NSN 5999-00-106-3926
NSN 5920-00-909-5898
NSN 6685-00-972-8492
NSN 5930-01-487-7852
NSN 5996-01-216-8136
NSN 5920-00-918-1585
NSN 5920-00-112-4341