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 5925-01-267-4587
NSN 6110-00-202-1021
NSN 5855-01-199-2046
NSN 5895-01-013-8096
NSN 6320-00-139-1090
NSN 5905-01-408-3119
NSN 5960-01-142-1995
NSN 6150-01-417-4743
NSN 6685-01-152-6003
NSN 5930-00-700-5374
NSN 6135-01-554-4281
NSN 6105-01-466-7793