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 5985-01-392-0926
NSN 5960-01-300-6788
NSN 5950-01-250-2229
NSN 4140-01-391-8899
NSN 5965-01-234-6844
NSN 7035-01-383-9357
NSN 5915-01-294-9628
NSN 6105-01-206-5415
NSN 5925-01-388-6353
NSN 6150-01-229-3269
NSN 5935-01-366-7096
NSN 5855-01-221-4076