Quality
Manufacturing Excellence into Every Part.

Our quality program meets all ISO 9001 requirements for consistency and reliability.
- Inspection procedures developed to ensure best-in-class quality for all products manufactured.
- Per ISO standards, all inspection and measuring equipment is calibrated on a continual basis. Records are available for review upon request.
- Detailed inspection and certification reports are provided with each part manufactured and retained for reference.
- Outside process vendors including plating, heat treatment, and finishing are audited annually to ensure all key quality standards are maintained.
- As a proud American spring manufacturer, we ensure that all our material is DFAR compliant.
- Peninsula Spring practices a Copy Exact program to ensure both quality and consistency.
- Our result drive team of experienced personnel are held to the highest standards.
We believe a quality product can be achieved by the following principles:
- Quality manufacturing held to the highest standards.
- Continuous improvement methodology.
- Employee certification and auditing.
It’s because of these principles that Peninsula Spring is able to retain hundreds of satisfied, repeat customers.

Our Keyence Measurement System aids in our quality standards, by allowing highly accurate measurements.
With the ability to gather measurements of 300 locations in just 3 seconds. Targets are captured using a lens with a wide field of view, and measurement is completed instantaneously.
Uniform measurement results made easy. The specification of measurement points are intuitive and simple, ensuring accurate measurement even with single products.

Our Keyence Measurement System aids in our quality standards, by allowing highly accurate measurements.
With the push of a button, measurement of multiple locations is possible in seconds with no need for repositioning or focusing.
With over 20 megapixels of high resolution, the built-in ultra-high-accuracy CMOS sensor captures measurement points with impressive clarity.
With ±0.1 µm repeatability, the newly developed lens and stage ensure unprecedented accuracy.
Our Quality Plan
By exceeding our customers’ expectations in quality, delivery and satisfaction through continuous improvement, our mission is to extend beyond our well-established history of manufacturing excellence and become a predominant supplier of precision metal products while advancing a uniquely exceptional customer experience.
In addition to specific customer quality requirements, we also abide by the following specifications:
ANSI/NCSL 2640 // MIL-STD45662A-1 | Calibration system (required)
MIL-Q-9858A | Quality program requirements
MIL-I-45208A | Inspection Requirements
MIL-STD-1916 | Sampling tables and procedures
MIL-STD-105E | Sampling tables and procedures
ANSI/ASQCZ1.4-1993 | Sampling tables and procedures
Who We Are
At Peninsula Spring, our mission is to extend beyond our well-established history of manufacturing excellence and become a predominant supplier of precision metal products, while advancing a uniquely exceptional customer experience.