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 5975-01-094-6250
NSN 7035-00-513-9764
NSN 5985-01-131-9644
NSN 6145-01-223-2824
NSN 6240-00-398-0740
NSN 5910-00-910-7409
NSN 6685-01-578-6664
NSN 5910-00-417-0825
NSN 7035-01-547-6159
NSN 5935-00-535-3834
NSN 5945-01-563-2487
NSN 5950-00-373-0729