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 5905-01-464-5058
NSN 5925-01-497-0343
NSN 5935-00-149-0735
NSN 6220-00-635-8818
NSN 5965-01-160-7001
NSN 5905-00-233-7094
NSN 7035-01-139-5707
NSN 5965-01-370-1891
NSN 5998-01-496-5901
NSN 6105-01-479-5494
NSN 5996-00-949-8885
NSN 5990-01-240-7288