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 6105-01-152-2800
NSN 6145-01-095-8456
NSN 5915-01-359-4124
NSN 7035-01-079-6560
NSN 5925-00-337-8138
NSN 6240-01-283-0404
NSN 5930-00-603-3974
NSN 6130-01-215-3688
NSN 2925-01-525-8212
NSN 5999-00-417-4957
NSN 6220-01-396-9520
NSN 5930-01-356-4382