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 5999-01-147-8977
NSN 6685-01-322-8516
NSN 6220-01-352-5425
NSN 5920-00-846-6632
NSN 5915-01-190-3232
NSN 5855-01-165-6361
NSN 6105-00-265-7545
NSN 6110-01-506-2446
NSN 5975-00-196-0698
NSN 5935-00-903-8499
NSN 2925-00-549-6759
NSN 5905-00-247-5801