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 6130-00-629-7396
NSN 6145-01-330-6794
NSN 5895-00-318-8719
NSN 7035-01-633-9537
NSN 6145-01-022-5652
NSN 5990-00-518-0684
NSN 5999-00-306-0878
NSN 6150-00-290-8125
NSN 5920-00-594-3124
NSN 5985-01-480-6627
NSN 5965-01-585-2473
NSN 5996-01-577-8354