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 5935-01-388-3562
NSN 6240-01-140-0732
NSN 6645-00-789-8095
NSN 5950-00-013-1236
NSN 6145-00-954-8342
NSN 5855-01-230-4665
NSN 6320-01-220-2264
NSN 5910-01-492-6889
NSN 6320-00-468-8421
NSN 5950-00-206-3213
NSN 6130-01-026-0603
NSN 5925-00-552-6491