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 6110-01-025-9773
NSN 5998-01-337-5029
NSN 5985-01-180-6743
NSN 5855-01-286-8850
NSN 5925-00-865-7869
NSN 5999-00-246-7084
NSN 7035-00-455-7666
NSN 5915-01-137-4975
NSN 6610-01-329-2289
NSN 6685-01-293-7306
NSN 5910-01-468-5571
NSN 5965-00-735-9315