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 6610-00-238-1693
NSN 5835-01-442-6482
NSN 5975-00-916-9453
NSN 7035-01-513-3025
NSN 6645-01-422-3510
NSN 6220-00-054-3668
NSN 5996-00-688-9082
NSN 5999-00-143-1818
NSN 5855-01-369-5037
NSN 5835-01-587-8787
NSN 5998-00-084-9937
NSN 6645-00-171-9639