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 5915-01-625-1360
NSN 6130-00-280-2518
NSN 5930-01-570-5537
NSN 2925-01-123-5856
NSN 6130-01-573-7665
NSN 5960-01-312-1262
NSN 2925-01-184-2413
NSN 6685-01-379-9882
NSN 5975-01-420-9280
NSN 5999-01-039-4185
NSN 6620-00-269-5168
NSN 5895-00-200-7114