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 6610-01-236-2510
NSN 5999-00-466-3226
NSN 6240-01-321-7844
NSN 2925-01-011-8732
NSN 6320-01-384-3850
NSN 6150-00-753-3950
NSN 6145-01-252-3777
NSN 5950-01-112-1172
NSN 5960-01-356-4429
NSN 6610-01-161-4835
NSN 5965-01-129-1968
NSN 6240-01-545-2408