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 5965-01-195-2168
NSN 6130-01-597-6237
NSN 6620-01-209-6909
NSN 5835-00-010-4307
NSN 5835-01-464-7038
NSN 5998-00-868-2645
NSN 7035-01-086-8095
NSN 5996-00-091-0254
NSN 5985-00-131-2749
NSN 5925-00-361-1943
NSN 5960-01-268-4356
NSN 5935-00-366-0085