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 6145-00-613-8044
NSN 5930-01-611-0804
NSN 6320-00-731-6134
NSN 6135-01-026-9960
NSN 2925-01-519-1707
NSN 5999-01-424-0955
NSN 5835-00-415-6421
NSN 5915-00-501-4558
NSN 5975-01-167-0735
NSN 6685-01-406-1822
NSN 5985-01-593-5653
NSN 6610-01-224-7247