SPEC D21390 Compression Spring
The SPEC Compression Spring (SKU D21390, MPN D21390) is a cylindrical compression spring made from 302 Stainless Steel, with a length of 22.5 mm and an outer diameter of 3.83 mm, supplied in a pack of 10. 3G Electric…
SKU 3G-OTH-669431
Also listed as: D 21390 · D-21390
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The SPEC Compression Spring (SKU D21390, MPN D21390) is a cylindrical compression spring made from 302 Stainless Steel, with a length of 22.5 mm and an outer diameter of 3.83 mm, supplied in a pack of 10. 3G Electric interprets your demand for this OEM-specified component and delivers it across 14 industrial departments — with specialist depth in combustion, pumps and controls as an authorised distributor.
Frequently Asked Questions
What is a SPEC compression spring used for?
A SPEC compression spring is used to store mechanical energy and resist compressive forces in industrial assemblies. Common applications include valves, pumps, actuators, and control mechanisms across machining, pneumatics, and material handling systems.
What are the specifications of the SPEC D21390 compression spring?
The SPEC D21390 compression spring is made of 302 stainless steel, has a cylindrical shape, a length of 22.5 mm, an outer diameter of 3.83 mm, and is supplied in a pack of 10. It is designed for OEM-specified replacement in industrial equipment.
Where to buy SPEC compression springs worldwide?
3G Electric supplies SPEC compression springs worldwide, handling full logistics and customs clearance. We source genuine OEM parts like the D21390 across 14 industrial departments, including specialist expertise in combustion, pumps, and controls.
How to select the right compression spring for an application?
To select the right compression spring, match the free length, outer diameter, wire diameter, and material to your OEM specifications. For the SPEC D21390, verify the 22.5 mm length and 3.83 mm outer diameter in 302 stainless steel to ensure proper fit and load capacity.
SPEC Products
3G Electric supplies SPEC cylindrical compression springs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
