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 6610-01-539-7125
NSN 5990-00-033-8128
NSN 5895-01-462-1464
NSN 5965-01-282-4602
NSN 6685-01-106-3210
NSN 6620-01-392-7191
NSN 4140-01-274-4762
NSN 5945-01-563-7956
NSN 5835-00-461-3342
NSN 6620-01-372-4168
NSN 6135-01-176-2206
NSN 6610-01-152-1463