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SPEC Extension Spring: 302 Stainless Steel, 2 1/2 in Free Lg, 0.031 in Wire Dia - Machine Hook Extension Springs
SPECMachine Hook Extension Springs

SPEC Extension Spring: 302 Stainless Steel, 2 1/2 in Free Lg, 0.031 in Wire Dia

The SPEC Extension Spring is a 302 Stainless Steel Machine Hook Extension Spring with a Free Length of 2 1/2 in, Wire Diameter of 0.031 in, and Outer Diameter of 0.3 in. Supplied as a 5 PK with a Plain finish (MPN…

SKU 3G-OTH-679923

Brand
SPEC
Item
Extension Spring: 302 Stainless Steel, 2 1/2 in Free Lg, 0.031 in Wire Dia
Part Number
H03000312500S
Category
Machine Hook Extension Springs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SPEC
Manufacturer Part Number
H03000312500S
Type
5 PK
O.D.
0.3 in
Finish
Plain
Free Lg
2 1/2 in
Wire Dia
0.031 in

Technical Documents

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SPEC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SPEC Extension Spring is a 302 Stainless Steel Machine Hook Extension Spring with a Free Length of 2 1/2 in, Wire Diameter of 0.031 in, and Outer Diameter of 0.3 in. Supplied as a 5 PK with a Plain finish (MPN H03000312500S), this product is available through 3G Electric, which interprets customer demand and delivers genuine industrial equipment across 14 departments, with specialist depth in combustion, pumps and controls.

Frequently Asked Questions

What is a SPEC extension spring used for?

A SPEC extension spring is used to provide a pulling force in mechanical assemblies, such as counterbalancing, latch return, or tensioning in industrial equipment. This 302 stainless steel machine hook spring suits applications requiring corrosion resistance and consistent load, common across machining, material handling, and automation systems.

What are the specifications of the SPEC extension spring H03000312500S?

The SPEC extension spring H03000312500S has a free length of 2 1/2 in, wire diameter of 0.031 in, and outer diameter of 0.3 in. It is made of 302 stainless steel with a plain finish and supplied as a 5-pack. These specs define its load capacity and fit for machine hook applications.

Where to buy SPEC extension springs worldwide?

3G Electric supplies SPEC extension springs worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine parts like the H03000312500S across 14 departments, including specialist expertise in combustion, pumps, and controls. Contact us for delivery to your location.

How to select the right SPEC extension spring for an application?

To select the right SPEC extension spring, match free length, wire diameter, and outer diameter to your assembly's space and load requirements. Consider material—302 stainless steel offers corrosion resistance. For tension applications, ensure the spring's maximum extended length and hook style fit your design. 3G Electric can help interpret your needs.

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SPEC Products

3G Electric supplies SPEC machine hook extension springs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This SPEC extension spring features machine hooks for tension applications in mechanical assemblies. With a 0.3 in outer diameter, 2-1/4 in free length, and 0.055 in wire diameter, it is supplied in a pack of 5 with a plain finish. Suitable for counterbalances, garage doors, and industrial machinery requiring corrosion resistance
Extension spring with machine hooks, 302 stainless steel, plain finish. Free length 2-1/4 in, wire diameter 0.049 in, outer diameter 0.3 in. Used for tensioning, counterbalancing, or latch return in mechanical assemblies. Pack of 5
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Extension spring with machine hooks, 302 stainless steel, plain finish. Free length 2-1/4 in, wire diameter 0.049 in, outer diameter 0.3 in. Used for tensioning, counterbalancing, or latch return in mechanical assemblies. Pack of 5
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This extension spring features machine hooks on both ends for tension applications. With a 0.3 in outer diameter, 0.037 in wire diameter, and 2 in free length, it provides a pulling force in mechanical assemblies such as counterbalances and industrial machinery. The plain finish offers basic corrosion resistance. Sold in a pack of 5

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