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 6645-01-528-8424
NSN 6145-01-304-5371
NSN 6135-01-282-4326
NSN 5935-01-433-1914
NSN 2925-01-079-6229
NSN 5920-00-529-0618
NSN 6685-00-925-7491
NSN 5999-01-155-1419
NSN 6150-00-538-1176
NSN 5910-01-238-0381
NSN 6130-01-391-6087
NSN 5945-01-534-7910