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 5975-00-276-7559
NSN 6130-01-343-5533
NSN 5999-01-250-6159
NSN 5960-01-597-9591
NSN 6645-01-049-0972
NSN 6240-01-169-1686
NSN 2925-00-284-1534
NSN 6610-00-772-9049
NSN 6145-01-104-6029
NSN 6320-01-530-0588
NSN 5835-01-085-5487
NSN 5855-00-951-6483