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 6610-01-400-3880
NSN 6135-01-364-2738
NSN 5950-00-167-1161
NSN 5965-01-356-1310
NSN 7035-01-470-5613
NSN 5910-01-399-5362
NSN 6135-00-080-9176
NSN 5950-01-020-9160
NSN 5835-01-315-2745
NSN 6145-01-529-4535
NSN 5965-01-633-8849
NSN 5965-01-308-7895