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 5920-00-590-4192
NSN 6610-01-065-1073
NSN 5915-01-167-9072
NSN 7035-01-256-9598
NSN 5920-01-020-7659
NSN 6145-01-126-5064
NSN 5915-00-141-0410
NSN 5910-00-153-0024
NSN 5945-00-338-3733
NSN 5855-01-184-8089
NSN 6645-01-314-6716
NSN 5930-01-585-9612