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 5910-01-222-0769
NSN 2925-01-317-6973
NSN 6320-00-564-2772
NSN 5935-01-041-6446
NSN 5990-00-296-4825
NSN 5895-01-321-0812
NSN 6685-01-087-4432
NSN 5935-00-676-8441
NSN 6145-01-226-5010
NSN 5855-00-761-6559
NSN 6110-00-811-9704
NSN 5895-01-322-7982