AP Services - a product and service brand of Curtiss-Wright - is a leading supplier of nuclear safety-related valve packing and spiral wound gaskets directly to nuclear utilities and OEMs supporting the nuclear Industry. For over 20 years, we have continuously improved our quality assurance program and increased the scope of our product and services offerings. Our NQA-1 / 10CFR50 Appendix B, including 10CFR21, Quality Assurance Program now covers an expanded selection of valve packing, sealing products, and inspection services.