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 5895-00-168-8765
NSN 6620-00-443-4694
NSN 5960-01-367-0981
NSN 5990-01-172-4553
NSN 5985-01-153-2657
NSN 6220-01-425-1588
NSN 5998-01-490-3453
NSN 5925-00-090-7403
NSN 5965-00-313-9049
NSN 5915-01-241-9336
NSN 5985-00-172-9778
NSN 5965-01-519-1214