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 5925-00-160-4747
NSN 6220-01-326-6847
NSN 5975-01-061-4541
NSN 5945-00-328-7300
NSN 5965-01-315-0373
NSN 6610-01-020-0586
NSN 6320-00-004-9158
NSN 6150-00-179-9876
NSN 6240-00-949-4849
NSN 6240-00-941-2714
NSN 6320-01-366-5157
NSN 6105-00-010-1170