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 5975-01-230-3866
NSN 5915-00-661-2223
NSN 6610-01-455-0290
NSN 5960-01-398-4883
NSN 5835-00-174-7763
NSN 5855-01-274-5311
NSN 4140-01-045-8747
NSN 6145-00-528-6467
NSN 5835-00-518-4507
NSN 5975-01-411-6054
NSN 6650-01-396-3287
NSN 5975-01-210-5444