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 5915-01-442-8785
NSN 5835-01-201-0570
NSN 5996-01-514-9292
NSN 5910-00-369-6436
NSN 5996-01-337-6190
NSN 5960-01-101-5672
NSN 6320-00-701-0437
NSN 6105-00-004-6941
NSN 6610-01-031-7248
NSN 6130-01-446-3429
NSN 5950-00-661-2612
NSN 6645-00-419-9939