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 6145-01-391-5148
NSN 6110-01-620-6559
NSN 5950-01-421-6971
NSN 6130-01-044-2671
NSN 5925-01-200-7813
NSN 6135-00-377-9165
NSN 5915-00-561-6528
NSN 6110-01-315-9784
NSN 5990-00-296-4825
NSN 5925-01-646-3988
NSN 6110-01-105-8373
NSN 5945-00-202-5133