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 5950-00-087-0041
NSN 6650-00-269-5000
NSN 5960-01-215-0992
NSN 5930-01-278-5731
NSN 5950-01-357-0248
NSN 5990-01-008-2515
NSN 6320-01-607-1491
NSN 5999-01-149-2674
NSN 5985-01-190-3493
NSN 5915-00-833-9025
NSN 5835-01-323-2581
NSN 5835-01-555-8963