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 6145-01-076-8202
NSN 5935-00-222-1540
NSN 6610-00-992-5283
NSN 6150-01-007-4606
NSN 5996-01-449-5535
NSN 5950-00-882-4626
NSN 6645-01-172-6838
NSN 6150-01-028-4937
NSN 5910-01-062-5399
NSN 5920-01-610-6361
NSN 6130-00-188-3709
NSN 6610-01-448-0982