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 5965-00-538-4485
NSN 5996-00-173-2620
NSN 5975-01-598-0329
NSN 6220-01-416-2867
NSN 6650-00-419-4146
NSN 5935-00-351-7014
NSN 5915-00-756-9678
NSN 5925-01-023-9116
NSN 5985-00-972-3026
NSN 6610-00-312-5148
NSN 5835-01-460-6054
NSN 5950-01-631-9475