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 5920-00-538-7915
NSN 6145-01-124-0035
NSN 5950-01-147-5419
NSN 6130-01-089-9646
NSN 5910-00-679-4033
NSN 5998-01-590-7638
NSN 5990-00-345-8967
NSN 4140-01-054-1201
NSN 5835-01-073-6133
NSN 5910-01-591-6226
NSN 5910-01-521-0090
NSN 5999-00-767-0974