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 5925-01-382-3041
NSN 5996-01-284-6871
NSN 5835-00-752-6065
NSN 6135-01-199-1185
NSN 7035-01-461-9766
NSN 7035-01-623-4987
NSN 5945-00-137-1194
NSN 5999-01-211-5462
NSN 6110-00-452-9148
NSN 5960-01-131-8999
NSN 5996-01-307-4403
NSN 5855-01-197-2774