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 5915-01-224-7044
NSN 6685-00-529-5971
NSN 5925-00-700-8674
NSN 5925-01-358-7316
NSN 5990-00-539-7859
NSN 6110-00-607-3027
NSN 5910-01-207-2293
NSN 5985-01-485-4750
NSN 5965-01-658-9422
NSN 5835-01-090-0784
NSN 5996-01-027-1729
NSN 5910-01-242-1025