Material is listed as anchor per 440g (astmf104)
A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.
NSN 6645-01-443-0269
NSN 6620-01-248-0358
NSN 5965-01-282-6085
NSN 2925-00-265-7539
NSN 5920-00-421-6448
NSN 6240-01-277-6510
NSN 6240-01-461-9635
NSN 5905-01-579-6292
NSN 2925-01-612-0405
NSN 5975-01-412-5075
NSN 5905-01-572-7874
NSN 5925-00-456-0651