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 6110-00-432-7414
NSN 5996-01-463-8197
NSN 5935-01-243-4710
NSN 5960-00-148-2654
NSN 6150-01-122-7900
NSN 6685-01-056-5283
NSN 2925-01-394-5650
NSN 5965-01-007-9757
NSN 7035-01-392-9838
NSN 6650-00-112-8361
NSN 4140-01-122-0384
NSN 5855-01-398-0090