Material is listed as anchor per 440gs (astm f104)
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 6685-01-448-7010
NSN 2925-01-311-7840
NSN 6685-01-564-6631
NSN 6620-00-220-2157
NSN 5975-00-536-4047
NSN 5965-01-481-6197
NSN 5905-01-116-1767
NSN 5965-00-074-1317
NSN 5998-01-514-6859
NSN 5965-01-144-3001
NSN 6150-00-233-6356
NSN 6610-01-310-3313