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 5835-00-733-9145
NSN 6135-01-510-9986
NSN 5945-01-412-5983
NSN 5935-01-230-4533
NSN 5990-01-303-0564
NSN 5930-00-666-2971
NSN 6145-01-258-1840
NSN 5965-00-529-0602
NSN 6145-01-412-6087
NSN 6135-01-396-4900
NSN 6135-00-488-4478
NSN 5910-00-102-8031