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 6145-00-964-4875
NSN 5935-01-579-6162
NSN 6145-00-259-1622
NSN 2925-00-728-4558
NSN 6145-01-503-8534
NSN 6685-01-413-1493
NSN 5835-01-236-6514
NSN 6650-01-334-9410
NSN 6645-01-016-0372
NSN 5999-01-653-6921
NSN 6685-01-555-7938
NSN 5999-00-155-8066