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 7035-01-141-3041
NSN 6110-00-163-6223
NSN 5905-00-195-6507
NSN 5835-00-509-2373
NSN 7035-01-468-3768
NSN 2925-01-618-5706
NSN 5925-01-303-6057
NSN 6320-00-422-1773
NSN 5920-00-137-1135
NSN 5975-01-540-0822
NSN 5855-00-832-7316
NSN 5895-01-433-6325