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 6610-01-442-3509
NSN 5945-00-089-0733
NSN 5996-00-722-0838
NSN 5915-00-139-6710
NSN 6135-01-334-3935
NSN 5910-01-416-7512
NSN 6620-01-165-1033
NSN 6130-00-862-8737
NSN 5999-00-178-0906
NSN 5950-01-287-2347
NSN 6620-01-109-2764
NSN 5835-01-091-2553