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 5950-01-329-1261
NSN 5945-01-067-7955
NSN 5999-01-089-9915
NSN 5985-00-825-1815
NSN 7035-01-631-0274
NSN 5915-00-226-0910
NSN 6645-01-373-8860
NSN 6240-00-933-7641
NSN 5998-01-530-4215
NSN 6240-01-477-7609
NSN 6110-00-643-4832
NSN 5975-00-135-6607