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 7035-01-211-5636
NSN 5895-01-505-9125
NSN 7035-00-104-7613
NSN 5950-01-125-2058
NSN 5975-01-532-6347
NSN 5999-00-366-9233
NSN 6320-01-275-3972
NSN 5895-00-433-5566
NSN 5895-00-703-3602
NSN 6610-01-476-0497
NSN 6645-01-467-8481
NSN 6240-00-951-4876