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 5895-01-085-0791
NSN 5895-01-022-2819
NSN 6220-01-472-3785
NSN 5895-00-433-3275
NSN 5990-00-022-2957
NSN 5915-01-395-8688
NSN 7035-01-432-2424
NSN 5835-00-111-3419
NSN 6320-00-894-1644
NSN 5910-00-915-1393
NSN 6685-01-372-8769
NSN 5905-00-155-8771