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 6685-01-309-3264
NSN 5945-01-482-4657
NSN 6320-01-592-6248
NSN 5915-00-456-0873
NSN 5950-01-500-6881
NSN 6620-00-124-9515
NSN 5950-00-435-4033
NSN 5965-01-424-7417
NSN 6220-01-473-0792
NSN 5920-01-197-0261
NSN 6135-00-793-1809
NSN 5950-01-152-2622