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 6110-01-396-0864
NSN 6645-00-719-9177
NSN 6110-01-029-6805
NSN 6610-01-383-6982
NSN 6150-01-370-5733
NSN 6110-00-989-4629
NSN 5999-00-065-6764
NSN 5945-00-511-6475
NSN 6150-01-139-3787
NSN 6645-01-287-7348
NSN 6320-00-433-2773
NSN 7035-00-631-3782