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 5935-00-756-3204
NSN 6620-01-333-7014
NSN 5895-00-138-2112
NSN 5915-01-366-9850
NSN 6105-01-576-0198
NSN 5945-01-268-1280
NSN 6110-01-545-4522
NSN 6685-01-433-0852
NSN 6650-00-170-5095
NSN 6110-00-103-9242
NSN 6685-00-646-7044
NSN 6240-00-079-0112