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 6105-00-947-0242
NSN 5945-01-178-5177
NSN 5930-00-475-7181
NSN 6685-01-105-2125
NSN 4140-01-146-8274
NSN 2925-01-464-2949
NSN 5975-01-014-9100
NSN 6135-01-570-4284
NSN 6685-01-092-3911
NSN 5999-00-822-8345
NSN 6240-00-454-9293
NSN 6685-00-052-4924