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 5835-00-523-0736
NSN 5965-00-653-4782
NSN 6685-01-295-3256
NSN 5930-01-381-1271
NSN 6620-00-857-5364
NSN 5998-01-172-2181
NSN 5905-01-053-2025
NSN 6620-01-183-1900
NSN 5999-00-432-6692
NSN 6650-01-175-0841
NSN 5835-01-528-7454
NSN 5935-00-800-7176