We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

SPEC Extension Spring: 302 Stainless Steel, 3 1/2 in Free Lg, 0.135 in Wire Dia - Machine Hook Extension Springs
SPECMachine Hook Extension Springs

SPEC Extension Spring: 302 Stainless Steel, 3 1/2 in Free Lg, 0.135 in Wire Dia

The SPEC Extension Spring (MPN H12501353500S) is a 302 Stainless Steel machine hook extension spring with a 1.25 in O.D., 3 1/2 in Free Lg, and 0.135 in Wire Dia in a Plain finish. 3G Electric sources this spring…

SKU 3G-OTH-681146

Brand
SPEC
Item
Extension Spring: 302 Stainless Steel, 3 1/2 in Free Lg, 0.135 in Wire Dia
Category
Machine Hook Extension Springs
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

SPEC
Manufacturer Part Number
H12501353500S
O.D
1.25 in
Finish
Plain
Free Lg
3 1/2 in
Wire Dia
0.135 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SPEC Extension Spring (MPN H12501353500S) is a 302 Stainless Steel machine hook extension spring with a 1.25 in O.D., 3 1/2 in Free Lg, and 0.135 in Wire Dia in a Plain finish. 3G Electric sources this spring across 14 industrial departments, with specialist expertise in combustion, pumps, and controls ensuring accurate sourcing and support.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a SPEC extension spring used for?

A SPEC extension spring stores and releases energy to resist pulling forces. It is used in industrial machinery, automotive assemblies, and material handling equipment where a controlled return motion is required. 3G Electric supplies this spring across 14 industrial departments.

What are the specifications of the SPEC H12501353500S extension spring?

The SPEC H12501353500S is a 302 Stainless Steel machine hook extension spring with a 1.25 in O.D., 3 1/2 in Free Lg, and 0.135 in Wire Dia in a Plain finish. It is designed for applications requiring corrosion resistance and consistent tension.

Where to buy SPEC extension springs worldwide?

3G Electric sources and delivers SPEC extension springs worldwide. We handle full logistics and customs clearance, ensuring you receive the correct part for your application. Contact us for availability and lead time on the H12501353500S or other SPEC spring sizes.

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

To select the right SPEC extension spring, match the free length, wire diameter, and outside diameter to your space and load requirements. Consider material—302 Stainless Steel offers corrosion resistance. 3G Electric’s specialist expertise in combustion, pumps, and controls helps verify your selection.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from SPEC

View all SPEC parts
This extension spring is made of 302 stainless steel with a plain finish, featuring machine hooks for secure attachment. It has an outer diameter of 0.75 in, wire diameter of 0.125 in, and free length of 3 1/2 in. Commonly used in tension applications such as counterbalances, door returns, and industrial machinery
SPEC
This extension spring is made of 302 stainless steel with a plain finish, featuring machine hooks for secure attachment. It has an outer diameter of 0.75 in, wire diameter of 0.125 in, and free length of 3 1/2 in. Commonly used in tension applications such as counterbalances, door returns, and industrial machinery
This 3-pack of machine hook extension springs is made from 302 stainless steel with a plain finish. Each spring has a free length of 3/8 in, wire diameter of 0.007 in, and outer diameter of 0.063 in. Commonly used in precision mechanical assemblies requiring consistent tension
SPEC
This 3-pack of machine hook extension springs is made from 302 stainless steel with a plain finish. Each spring has a free length of 3/8 in, wire diameter of 0.007 in, and outer diameter of 0.063 in. Commonly used in precision mechanical assemblies requiring consistent tension
Music wire extension spring with machine hook ends. Free length 1-1/4 in, wire diameter 0.049 in, outer diameter 0.3 in. Oil finish. Used to provide pulling force in machinery, automation, and material handling equipment. Pack of 5
SPEC
Music wire extension spring with machine hook ends. Free length 1-1/4 in, wire diameter 0.049 in, outer diameter 0.3 in. Oil finish. Used to provide pulling force in machinery, automation, and material handling equipment. Pack of 5
This SPEC extension spring is made of music wire with machine hooks. It has a free length of 1 inch, wire diameter of 0.031 inches, and outer diameter of 0.36 inches. The spring features an oil finish and is supplied in a pack of 5. Commonly used in tension applications such as counterbalances and mechanical assemblies
SPEC
This SPEC extension spring is made of music wire with machine hooks. It has a free length of 1 inch, wire diameter of 0.031 inches, and outer diameter of 0.36 inches. The spring features an oil finish and is supplied in a pack of 5. Commonly used in tension applications such as counterbalances and mechanical assemblies
Machine hook extension spring with 0.85 in outer diameter, 5 in free length, and 0.075 in wire diameter. Plain finish. Used to provide pulling force in industrial machinery, material handling, packaging equipment, and automation systems
SPEC
Machine hook extension spring with 0.85 in outer diameter, 5 in free length, and 0.075 in wire diameter. Plain finish. Used to provide pulling force in industrial machinery, material handling, packaging equipment, and automation systems
Carbon steel extension spring with machine hook ends, 9 mm outer diameter, 1.8 mm wire diameter, and 102.4 mm free length. Finished with a corrosion inhibitor for extended service life. Supplied in a 2-pack. Used in tension applications such as industrial machinery, automotive assemblies, and material handling equipment
SPEC
Carbon steel extension spring with machine hook ends, 9 mm outer diameter, 1.8 mm wire diameter, and 102.4 mm free length. Finished with a corrosion inhibitor for extended service life. Supplied in a 2-pack. Used in tension applications such as industrial machinery, automotive assemblies, and material handling equipment
This extension spring features machine hook ends for secure attachment in tension applications. With a free length of 2 3/4 inches, 0.125 inch wire diameter, and 0.75 inch outer diameter, it provides controlled resistance to pulling forces. Suitable for use in industrial machinery, automation equipment, and material handling systems where consistent tension is required
SPEC
This extension spring features machine hook ends for secure attachment in tension applications. With a free length of 2 3/4 inches, 0.125 inch wire diameter, and 0.75 inch outer diameter, it provides controlled resistance to pulling forces. Suitable for use in industrial machinery, automation equipment, and material handling systems where consistent tension is required
Machine hook extension spring with 0.075 in wire diameter, 0.85 in outer diameter, and 4 1/2 in free length. Oil finish. Supplied as a 2-pack. Used to provide pulling force in mechanical assemblies such as counterbalances, garage doors, and industrial machinery
SPEC
Machine hook extension spring with 0.075 in wire diameter, 0.85 in outer diameter, and 4 1/2 in free length. Oil finish. Supplied as a 2-pack. Used to provide pulling force in mechanical assemblies such as counterbalances, garage doors, and industrial machinery