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 5935-01-294-9863
NSN 6220-00-027-5303
NSN 6145-01-255-2878
NSN 5935-01-160-0060
NSN 5935-01-426-2961
NSN 5945-01-510-2570
NSN 6610-01-171-3010
NSN 6150-01-345-8310
NSN 6610-01-282-1605
NSN 5930-00-518-4790
NSN 6610-01-394-4944
NSN 5925-01-391-4986