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 6240-00-225-7359
NSN 6150-01-571-5619
NSN 5925-01-218-1679
NSN 2925-00-254-9776
NSN 5855-00-198-3197
NSN 6105-00-245-2587
NSN 6145-00-691-3609
NSN 6685-01-303-3249
NSN 6130-01-294-7481
NSN 6220-00-246-7245
NSN 5910-01-088-6848
NSN 6105-00-452-3855