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 6320-01-072-2073
NSN 5835-01-515-6537
NSN 6145-01-136-9639
NSN 6620-01-606-8964
NSN 5925-01-114-2910
NSN 5950-00-501-9448
NSN 6320-01-516-3836
NSN 6620-01-369-3589
NSN 6135-00-542-6216
NSN 5915-00-131-3425
NSN 5985-01-076-5873
NSN 5950-01-449-1311