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 5930-01-118-2538
NSN 7035-01-143-3573
NSN 5998-00-221-2543
NSN 6685-00-405-2975
NSN 5945-00-222-1333
NSN 6650-01-014-5990
NSN 7035-01-423-8343
NSN 5945-00-585-7032
NSN 5985-00-296-2799
NSN 7035-01-579-3587
NSN 5950-01-224-0325
NSN 5855-01-210-7636