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 6105-01-260-2507
NSN 6610-00-894-2143
NSN 6135-01-367-6203
NSN 5945-01-471-0410
NSN 5960-01-412-9474
NSN 5910-00-207-8860
NSN 6110-01-313-1816
NSN 6135-01-190-2628
NSN 6320-01-419-6416
NSN 5930-01-596-8038
NSN 6685-01-642-0597
NSN 5895-01-153-8230