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 5960-00-943-4061
NSN 6685-00-089-9615
NSN 6130-00-832-9162
NSN 6105-00-598-4910
NSN 5945-00-700-3413
NSN 5990-01-281-7601
NSN 5945-01-152-1240
NSN 5985-01-423-8577
NSN 5910-01-476-8897
NSN 5996-01-361-8299
NSN 6105-00-927-6978
NSN 5945-01-549-9815