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 5950-00-158-5352
NSN 6610-01-531-6980
NSN 6645-01-105-9757
NSN 5925-01-615-7267
NSN 6645-01-541-9114
NSN 5999-00-882-0158
NSN 6220-00-629-9271
NSN 6610-00-663-7749
NSN 5965-01-197-6924
NSN 5920-01-394-3826
NSN 6320-01-450-7513
NSN 6135-01-173-6306