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 7035-01-172-4024
NSN 6145-00-078-9917
NSN 6620-01-352-0364
NSN 6240-01-463-3664
NSN 5945-01-476-7182
NSN 5945-01-337-9150
NSN 5925-00-578-4774
NSN 7035-00-973-9215
NSN 6620-01-646-8593
NSN 6645-00-862-2904
NSN 6220-00-480-4906
NSN 2925-01-164-9579