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 5910-01-022-3816
NSN 6610-01-097-3259
NSN 5920-01-359-3982
NSN 7035-01-076-4067
NSN 6685-00-293-6620
NSN 5920-01-215-4741
NSN 5910-01-442-3287
NSN 6240-01-293-2600
NSN 6135-01-459-1239
NSN 5985-01-521-2625
NSN 5975-01-333-6004
NSN 6645-01-447-1516