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 2925-00-698-4331
NSN 5855-01-484-3619
NSN 6145-01-516-2927
NSN 2925-01-225-0713
NSN 5905-00-809-6538
NSN 5905-01-364-7844
NSN 5960-01-205-7425
NSN 5905-01-582-0474
NSN 5855-01-103-8650
NSN 5990-01-452-0911
NSN 6685-00-264-3986
NSN 2925-01-318-8853