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 5925-01-630-8444
NSN 2925-01-583-5619
NSN 6110-01-367-6526
NSN 5998-01-367-3653
NSN 6110-00-596-9124
NSN 5835-00-594-4921
NSN 5915-00-100-5239
NSN 5930-01-351-2356
NSN 2925-01-545-2717
NSN 5925-01-513-9924
NSN 6685-01-142-1969
NSN 6620-00-924-4369