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 6610-01-195-3497
NSN 5905-00-897-8023
NSN 6220-00-136-9400
NSN 2925-01-123-5856
NSN 6685-01-146-3560
NSN 5920-01-605-1384
NSN 6650-01-003-6929
NSN 5999-01-501-6531
NSN 6135-01-252-0315
NSN 5960-01-110-6326
NSN 6240-01-202-5649
NSN 5835-00-289-9080