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 6220-00-149-0977
NSN 5960-00-895-0542
NSN 5965-01-608-7216
NSN 5950-00-009-7043
NSN 7035-01-547-9632
NSN 6105-01-393-8951
NSN 2925-00-816-8765
NSN 5925-00-951-7446
NSN 2925-00-103-6822
NSN 6110-00-878-5948
NSN 6240-00-826-4202
NSN 6610-01-214-6680