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 5985-00-421-2659
NSN 6240-01-160-8975
NSN 5920-01-415-2178
NSN 6135-01-442-0890
NSN 5930-01-056-3297
NSN 5945-00-816-9717
NSN 6610-00-148-7180
NSN 6240-00-822-4571
NSN 6610-01-304-3226
NSN 7035-00-104-7613
NSN 6240-01-179-1189
NSN 5930-00-960-4826