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 5945-00-415-8284
NSN 6610-01-458-5815
NSN 5998-01-094-6936
NSN 5965-00-508-3270
NSN 2925-01-118-6125
NSN 4140-01-167-2251
NSN 5915-01-113-7872
NSN 6110-01-258-7120
NSN 5998-01-400-0938
NSN 6135-01-313-4865
NSN 6620-01-510-3501
NSN 5985-01-517-3691