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 6220-01-446-6430
NSN 5915-01-282-4642
NSN 5990-01-433-7886
NSN 5895-01-419-6748
NSN 5960-00-594-0824
NSN 6320-00-377-5683
NSN 7035-00-177-1557
NSN 6610-01-618-4603
NSN 5999-01-143-9187
NSN 6610-00-903-0714
NSN 5985-00-500-0269
NSN 5990-00-054-0512