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 5935-01-209-4889
NSN 5996-01-244-0222
NSN 5975-00-121-3589
NSN 6150-01-587-6617
NSN 6105-01-446-6527
NSN 5965-01-652-1247
NSN 6150-00-111-3528
NSN 6220-00-676-0904
NSN 5998-01-450-8528
NSN 6320-01-362-9518
NSN 4140-01-634-0330
NSN 5925-01-649-6225