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 6145-01-170-3797
NSN 6110-00-686-4685
NSN 5905-00-222-8977
NSN 5975-01-146-7386
NSN 6135-01-407-8254
NSN 6220-01-140-3529
NSN 6105-00-671-0368
NSN 5990-01-455-8035
NSN 5925-01-401-5314
NSN 6620-00-190-8109
NSN 5950-01-306-1881
NSN 6135-01-180-9611