Precision. Speed. Compliance. Delivered.
Precision Machining You Can Trust
Delivering Full-Service Machining and Certified Test Specimens for Your Most Critical Programs

Green Specialty Services proudly serves major aerospace and defense OEMs, their supply chains, and government contractors who require precision test specimens and high-accuracy machined components.
Our expertise in precision manufacturing, AS9100-compliant quality systems, and advanced inspection capabilities ensures that our customers receive reliable, high-performance parts that meet the strictest industry standards.
Whether you need test specimens, custom-machined components, or full-scale production support, we provide the precision and dependability you need to keep your operations running at peak performance.
Why Aerospace & Defense Leaders Choose Us for CNC Precision Machining
Unmatched Precision
Proprietary machinery ensures consistency and reliability in every part.
Relentless Commitment to Quality
We invest heavily in advanced inspection equipment, rigorous training, and continuous improvement to ensure every part meets the highest standards.
Industry Expertise
Trusted by major aerospace and defense OEMs worldwide.
Fast & Reliable Turnaround
Keeping your testing processes on schedule.
Custom Solutions & Expanded Capabilities
Open to new aerospace, defense, and government projects—let’s collaborate on your next challenge.
We Enable Your Success
Providing the test specimens and components you need, so you can keep focusing on what you do best.
Custom Metal Parts & Test Specimens You Can Trust
Precision Test Specimens for Critical Aerospace & Defense Applications
We manufacture precision test specimens for a range of critical applications—including notch tensile specimens for hydrogen embrittlement testing, fatigue specimens for life cycle and durability studies, tensile specimens for strength verification, and sheet metal specimens for evaluating plating and coating properties.
Alongside our test specimens, we also produce precision components for aerospace, defense, and government programs. If you’re looking for a reliable machining partner, we’d love to discuss how we can support your next project.
Precision CNC Machining, Inspection, and Support—All Under One Roof
Advanced Precision Machining & Grinding
We utilize state-of-the-art equipment to produce precision components that meet the strict tolerances required in aerospace and defense applications.
Horizontal Turning (Lathes)
High-precision turning for cylindrical components.
Vertical Turning (Mills)
Precision milling for complex geometries.
OD Grinding
Ensuring tight tolerances and superior surface finishes.
Surface Grinding
Precision flat surface machining for critical applications.
Sawing
Precision cutting for a variety of materials and sizes.
Laser Cutting
High-accuracy cutting for intricate designs and tight tolerances.
Sand, Bead, & Aluminum Oxide Blasting
Surface preparation for improved adhesion, wear resistance, and finishing.
Cutting & Surface Preparation
From raw material processing to final surface treatments, we provide comprehensive services to enhance durability, performance, and compliance.
State-of-the-Art Inspection & Quality Assurance
Our AS9100-compliant quality management system ensures that every part meets or exceeds aerospace and defense specifications. We employ the latest inspection technologies to verify precision, consistency, and performance.
High-Powered Microscopes
Detailed surface and defect analysis.
Visual Inspection Equipment
Ensuring flawless component finishes.
CNC-Controlled Optical Comparators
Automated precision measurement.
Laser Engraving Systems
Permanent marking for traceability and compliance.
Laser Microscopes
High-resolution inspection for critical features.
Trusted Manufacturing Partner for Aerospace and Defense Supply Chains
From precision test specimens to mission-critical components, we deliver the quality, speed, and reliability your programs demand. Whether you’re an OEM, Tier 1 supplier, or government contractor, we’re here to help you stay compliant and on schedule.
Have a Project in Mind? We’re Here to Help
Ready to discuss your next project? Let’s collaborate on a solution that meets your exact requirements.