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 5950-01-385-9388
NSN 6110-00-144-6763
NSN 5985-01-228-6619
NSN 5915-00-628-8960
NSN 6320-01-416-9357
NSN 5960-01-215-0992
NSN 5895-01-211-1795
NSN 5835-01-422-2399
NSN 5999-00-429-1915
NSN 6685-00-068-7823
NSN 5905-01-475-4841
NSN 4140-00-841-1270