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 5935-01-046-0263
NSN 6110-01-370-4234
NSN 5905-01-226-7716
NSN 6240-01-459-4709
NSN 5996-01-444-3915
NSN 7035-00-973-9215
NSN 6220-01-212-3254
NSN 6320-01-425-1417
NSN 6645-01-441-4456
NSN 5935-01-221-0807
NSN 5915-01-152-8014
NSN 5835-01-486-0545