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 5925-00-734-1441
NSN 5920-00-068-8525
NSN 5985-01-157-7871
NSN 5920-00-066-6885
NSN 5960-01-437-5318
NSN 6220-00-581-3858
NSN 6620-01-154-7051
NSN 6645-01-258-6188
NSN 5935-00-679-9663
NSN 5985-01-403-2835
NSN 5905-01-097-3559
NSN 6610-00-152-7216