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 5935-01-218-5521
NSN 5945-01-477-1335
NSN 5855-01-258-6180
NSN 6320-00-513-8376
NSN 7035-01-095-8280
NSN 5835-01-039-6993
NSN 6220-01-341-9813
NSN 6135-01-620-1306
NSN 6685-00-630-4519
NSN 6620-01-524-7562
NSN 6145-01-400-0478
NSN 5999-01-122-9192