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 5985-01-352-4159
NSN 6105-01-026-4749
NSN 6150-01-640-9960
NSN 5945-01-528-9418
NSN 6110-01-548-0048
NSN 6620-01-255-7757
NSN 5985-00-917-8004
NSN 6685-01-656-0538
NSN 5950-01-323-5833
NSN 6610-01-426-3514
NSN 5920-01-177-9200
NSN 6620-00-933-3640