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 6150-01-415-1884
NSN 5990-01-054-4255
NSN 6220-00-276-2785
NSN 6105-01-312-6055
NSN 5910-01-084-5850
NSN 2925-00-714-3932
NSN 5855-00-079-2370
NSN 5975-01-214-4577
NSN 6105-00-688-7082
NSN 5915-01-539-7634
NSN 5985-01-620-2991
NSN 6105-01-199-3244