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 6610-01-431-8575
NSN 6130-01-015-5546
NSN 5835-01-534-3172
NSN 5950-01-398-9094
NSN 5945-01-605-0511
NSN 6135-01-321-5659
NSN 6105-00-256-0113
NSN 5915-01-367-6092
NSN 6645-01-629-9657
NSN 6620-00-303-0358
NSN 5999-01-618-4988
NSN 2925-01-314-4612