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 6130-01-543-6480
NSN 6645-00-496-7424
NSN 5996-01-505-4665
NSN 5835-01-632-6627
NSN 6220-01-413-2248
NSN 2925-00-806-7972
NSN 5855-01-143-7051
NSN 5990-00-932-9324
NSN 5960-00-732-8009
NSN 5835-00-892-3510
NSN 5999-01-506-9075
NSN 6610-01-423-9219