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 6685-00-381-8551
NSN 5905-01-398-4913
NSN 5925-01-409-2616
NSN 5945-00-775-8036
NSN 6240-01-097-2002
NSN 5975-00-428-1683
NSN 6610-01-414-7481
NSN 5905-01-426-1185
NSN 6220-00-898-3503
NSN 6320-01-285-1922
NSN 6110-01-564-8666
NSN 5950-00-399-1037