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 6110-01-129-2520
NSN 5945-01-594-9922
NSN 6145-01-394-3122
NSN 5935-01-539-8183
NSN 6130-01-422-1638
NSN 5998-01-615-4468
NSN 5915-01-274-9170
NSN 7035-00-631-3782
NSN 5945-01-323-2900
NSN 6220-00-195-4655
NSN 5999-01-548-2405
NSN 6620-01-140-4405