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 7035-01-145-5059
NSN 6145-00-322-0434
NSN 5998-01-063-2190
NSN 6130-01-142-3605
NSN 6145-01-226-5010
NSN 6240-01-475-7261
NSN 5950-01-127-6081
NSN 5935-01-371-3005
NSN 6645-01-528-4621
NSN 6145-01-393-7811
NSN 2925-01-564-3847
NSN 5925-01-313-3895