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 2925-01-483-2389
NSN 6110-00-104-8009
NSN 5998-00-406-6008
NSN 5835-01-096-3647
NSN 5915-01-195-6083
NSN 5910-00-296-8816
NSN 6145-00-643-4962
NSN 5965-01-541-9336
NSN 5950-01-476-7341
NSN 5935-01-440-6823
NSN 7035-00-973-9215
NSN 2925-01-418-8106