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 5915-00-832-8978
NSN 6685-01-423-1464
NSN 6130-01-580-3882
NSN 5996-00-076-2267
NSN 5945-00-862-3979
NSN 5985-01-012-2025
NSN 6150-01-076-4811
NSN 5835-01-158-6878
NSN 5950-00-579-2222
NSN 5960-01-311-2170
NSN 5915-00-228-6179
NSN 5910-01-152-2051