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 6220-01-167-0516
NSN 5998-00-295-2135
NSN 5960-00-875-9823
NSN 5990-00-078-8529
NSN 6150-00-996-3808
NSN 5905-01-243-1784
NSN 6110-01-230-7356
NSN 5965-01-535-5789
NSN 6610-00-473-0548
NSN 5835-00-168-9623
NSN 5999-00-171-8858
NSN 6320-00-925-0558