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 6610-00-956-4464
NSN 6645-00-968-6118
NSN 5915-01-418-0265
NSN 6105-00-503-5100
NSN 2925-00-024-6392
NSN 7035-01-311-5098
NSN 6145-01-433-8876
NSN 4140-01-338-2154
NSN 5910-00-466-3614
NSN 6645-01-539-2920
NSN 6620-00-079-0311
NSN 5930-01-407-6108