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 6685-00-228-4815
NSN 5999-01-188-2685
NSN 5975-01-449-1203
NSN 6105-01-220-4006
NSN 5996-01-200-5493
NSN 6105-01-463-7677
NSN 5835-01-625-8604
NSN 5985-00-160-8767
NSN 6610-01-275-9771
NSN 6685-01-082-5528
NSN 5985-00-950-0249
NSN 5910-01-126-8180