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 5945-01-601-8671
NSN 5915-01-550-4839
NSN 6145-01-040-1036
NSN 5930-01-268-7774
NSN 6145-01-265-0522
NSN 5910-00-900-4436
NSN 6320-01-183-8196
NSN 6620-00-718-6525
NSN 2925-00-233-5644
NSN 6685-01-123-9275
NSN 6135-01-294-2131
NSN 6130-01-165-4616