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 6610-01-003-9763
NSN 5925-01-089-6970
NSN 5950-01-104-7155
NSN 5835-00-148-9719
NSN 5930-01-146-6625
NSN 5996-01-485-0562
NSN 5895-01-641-1506
NSN 6610-01-480-0586
NSN 6240-01-309-8888
NSN 5905-01-453-9261
NSN 6220-01-448-5013
NSN 2925-00-875-9776