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 5925-01-100-0970
NSN 5935-01-421-8014
NSN 6110-01-494-8363
NSN 5960-01-319-6735
NSN 5835-01-460-6054
NSN 5895-01-456-9659
NSN 5985-00-926-7373
NSN 6150-01-253-4501
NSN 6110-01-371-1063
NSN 5910-01-175-5712
NSN 5998-01-151-7642
NSN 6645-01-618-1983