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 5996-01-246-7139
NSN 5910-01-014-7131
NSN 5895-00-417-5529
NSN 5835-01-595-4099
NSN 5998-01-081-1785
NSN 5855-01-316-3634
NSN 5950-01-385-5761
NSN 5985-01-052-9757
NSN 5965-01-653-5419
NSN 6220-01-528-9438
NSN 6130-01-507-4357
NSN 6105-01-033-2141