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 6105-01-264-5443
NSN 6105-00-116-7843
NSN 5965-01-516-9960
NSN 7035-01-096-8912
NSN 6645-01-618-1983
NSN 6220-01-581-2162
NSN 5945-01-156-7095
NSN 5855-01-323-5394
NSN 5920-01-643-5913
NSN 5930-00-543-8977
NSN 6110-00-263-6664
NSN 5996-01-633-6642