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 6685-00-729-6498
NSN 6150-01-440-5068
NSN 6135-01-255-9129
NSN 5965-01-333-8560
NSN 6685-00-879-6137
NSN 6685-01-529-2436
NSN 5935-01-547-3469
NSN 6685-01-251-1556
NSN 5915-00-870-4654
NSN 5960-01-013-9346
NSN 6145-01-396-0982
NSN 2925-01-062-2660