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 5905-00-784-7002
NSN 6135-01-138-4895
NSN 5996-00-927-9922
NSN 5915-00-734-4399
NSN 5960-00-918-2369
NSN 6320-01-560-7177
NSN 2925-01-157-9204
NSN 5935-01-431-3203
NSN 6610-00-584-5055
NSN 5990-01-314-8591
NSN 5925-00-703-3627
NSN 6650-01-276-4486