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 7035-01-008-5568
NSN 5998-01-065-0860
NSN 5915-00-045-8082
NSN 5950-01-161-1752
NSN 6320-00-149-7570
NSN 6610-00-058-0900
NSN 5905-01-622-9688
NSN 5905-01-337-4845
NSN 5965-01-518-4490
NSN 6320-01-021-6633
NSN 5996-01-444-9936
NSN 6240-00-684-8181