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 5915-01-276-2779
NSN 5895-00-558-1993
NSN 2925-01-161-7440
NSN 5998-01-317-7544
NSN 5935-01-164-2014
NSN 6240-01-265-0960
NSN 4140-00-713-9320
NSN 5960-01-426-4242
NSN 6150-01-205-7686
NSN 5999-01-123-4090
NSN 5855-01-394-3688
NSN 4140-00-111-3247