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 6320-01-659-2819
NSN 6105-01-529-2860
NSN 5996-01-313-2644
NSN 2925-01-327-3069
NSN 5950-00-338-4404
NSN 6610-01-212-2969
NSN 5965-01-214-6225
NSN 5950-01-147-1660
NSN 6130-01-478-9700
NSN 5930-00-292-1089
NSN 5915-01-313-9764
NSN 5950-01-055-5650