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 5905-01-514-6861
NSN 6220-01-278-8900
NSN 5915-01-180-6694
NSN 5905-01-475-4459
NSN 6320-00-036-3688
NSN 6685-00-287-7564
NSN 5915-01-221-6482
NSN 5998-00-026-8726
NSN 5855-01-459-9254
NSN 6110-00-753-7677
NSN 6220-00-635-8818
NSN 5945-01-043-6225