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 6150-00-124-3680
NSN 5950-01-027-8369
NSN 6240-01-285-7857
NSN 6610-01-378-8422
NSN 5975-01-114-7967
NSN 6240-00-504-6583
NSN 5990-01-522-6096
NSN 6320-01-578-6006
NSN 6105-01-055-4884
NSN 7035-01-155-9025
NSN 5935-01-179-7345
NSN 6105-01-602-9874