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 6685-00-217-9010
NSN 5998-01-160-9052
NSN 5915-01-550-8217
NSN 5915-01-084-5302
NSN 5935-01-455-7523
NSN 5950-00-433-1659
NSN 6645-00-456-2219
NSN 6130-01-302-7528
NSN 6220-00-790-7780
NSN 5930-01-450-4411
NSN 5930-01-250-7511
NSN 6320-01-267-7990