Product Overview
Century Spring PP-9CS 0.125" OD x 1.250" Length Helical Compression Spring
Condition
New old stock (NOS). Individual straight coil compression spring in clean, unused condition.
Same or next business day shipping from our Idaho warehouse. Reliable parts since 1999. Honest pricing, no nonsense.
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Product Overview
Century Spring PP-9CS is a precision helical compression spring formed from stainless steel wire with closed, unground ends. It provides linear push resistance, mechanism return force, and mechanical preloading for tight-tolerance assemblies requiring a high spring rate in a compact 1/8-inch envelope.
Key Features
- Outer Diameter: 0.125 in (3.18 mm)
- Free Length: 1.250 in (31.75 mm)
- Wire Diameter: 0.030 in (0.76 mm)
- Spring Rate: 100.0 lbs/in (17.5 N/mm)
- Solid Height: 0.45 in (11.43 mm)
- Maximum Load: 7.2 lbs
- End Construction: Closed ends, not ground
- Material: Stainless steel
Applications
- Mechanism return and detent action in electromechanical assemblies, switches, and precision fixtures.
- Prototyping, hobbyist builds, mechanism dampening, and small-scale custom machinery.
- Direct replacement for Century Spring PP-9CS in maintenance, repair, and overhaul operations.
Frequently Asked Questions
What material is the PP-9CS spring made from?
This spring is manufactured from stainless steel wire, offering corrosion resistance in mechanical and electromechanical mechanisms.
Are the ends of this spring ground flat?
No. The ends are closed but unground.
Why buy individual springs here instead of ordering a large bulk lot?
You can purchase the exact quantity needed for your repair or build without paying for a forced factory pack or unwanted multiples. Orders ship for an $8 flat rate, qualify for free shipping at $28, and dispatch from our Idaho warehouse the same or next business day.
Small mechanical springs are the quiet backbone of every mechanism that resets, returns, or pushes back. Drop it into your assembly and let clean geometry do the work.
