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 6130-00-127-3928
NSN 5965-01-046-9619
NSN 5855-01-366-2429
NSN 5965-01-501-5638
NSN 6150-01-354-3392
NSN 6645-00-815-5448
NSN 5945-01-345-0877
NSN 6320-00-110-8005
NSN 5999-01-281-8193
NSN 6150-01-186-6634
NSN 5910-01-473-4207
NSN 2925-01-604-8984