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 5895-01-046-6660
NSN 5985-01-406-3447
NSN 5975-01-248-3717
NSN 5999-01-546-3374
NSN 6320-00-433-2773
NSN 6650-01-376-6965
NSN 5915-01-231-3911
NSN 5999-01-409-2834
NSN 6135-01-426-8282
NSN 5935-00-953-4394
NSN 5985-01-416-1927
NSN 6110-00-525-3418