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 7035-01-429-0431
NSN 5915-01-156-5703
NSN 6650-01-312-3467
NSN 5920-01-152-1949
NSN 5950-01-226-5486
NSN 5920-00-281-2488
NSN 5925-00-290-4451
NSN 6130-00-721-4156
NSN 6105-01-146-5335
NSN 5935-01-080-0520
NSN 6220-01-111-7085
NSN 6685-01-243-1265