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 5935-01-305-2960
NSN 5895-01-522-6667
NSN 5985-01-631-7179
NSN 5985-01-311-6836
NSN 5950-00-542-0627
NSN 5895-01-202-7915
NSN 6650-00-910-2708
NSN 5910-00-172-9223
NSN 6110-01-211-2588
NSN 5996-00-288-1829
NSN 7035-00-455-7666
NSN 5855-01-221-4076