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 5950-01-155-3096
NSN 5910-00-224-5915
NSN 5985-01-528-3130
NSN 6320-00-468-8421
NSN 6130-01-491-4565
NSN 5945-01-435-7148
NSN 5835-01-263-1293
NSN 6110-01-609-0548
NSN 6220-01-052-3986
NSN 7035-01-157-0028
NSN 6240-00-160-9223
NSN 6110-00-086-2990