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 5925-00-599-6339
NSN 6620-01-476-7355
NSN 5975-00-781-0193
NSN 5915-00-972-1605
NSN 2925-00-233-5644
NSN 6685-00-153-3914
NSN 6620-01-068-4498
NSN 5835-00-841-2650
NSN 5960-01-458-7999
NSN 5945-01-237-1381
NSN 5965-01-170-8799
NSN 5975-01-524-4265