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 5935-01-661-0294
NSN 6685-00-209-4400
NSN 5835-01-089-7615
NSN 6145-01-422-4485
NSN 5996-01-421-4417
NSN 5855-00-288-1408
NSN 5930-01-336-5077
NSN 5985-01-183-4132
NSN 6650-01-305-0027
NSN 2925-01-026-1000
NSN 5975-00-144-7878
NSN 5930-00-849-4908