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 6650-00-067-3572
NSN 4140-01-540-4017
NSN 6105-01-069-2354
NSN 5835-01-123-8305
NSN 6240-01-254-6019
NSN 5910-01-030-1774
NSN 6105-01-050-9823
NSN 6320-01-054-3046
NSN 6105-00-265-7545
NSN 5950-00-008-4579
NSN 5935-01-560-8181
NSN 5999-01-455-3869