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

SPEC Extension Spring: Music Wire, 1 in Free Lg, 0.037 in Wire Dia, 0.3 in O.D. - Machine Hook Extension Springs
SPECMachine Hook Extension Springs

SPEC Extension Spring: Music Wire, 1 in Free Lg, 0.037 in Wire Dia, 0.3 in O.D.

The SPEC Machine Hook Extension Spring (SKU 3G-OTH-681605, MPN MH03000371000M) is a music-wire spring with a 1 in free length, 0.037 in wire diameter, and 0.3 in O.D., supplied in a 5-pack with an oil finish.

SKU 3G-OTH-681605

Brand
SPEC
Item
Extension Spring: Music Wire, 1 in Free Lg, 0.037 in Wire Dia, 0.3 in O.D.
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
MH03000371000M
Type
5 PK
O.D.
0.3 in
Finish
Oil
Free Lg
1 in
Wire Dia
0.037 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 Machine Hook Extension Spring (SKU 3G-OTH-681605, MPN MH03000371000M) is a music-wire spring with a 1 in free length, 0.037 in wire diameter, and 0.3 in O.D., supplied in a 5-pack with an oil finish.

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 with machine hooks is used to provide tension in industrial assemblies, such as counterbalances, door returns, and conveyor systems. The music wire construction and oil finish offer reliable performance in general-purpose mechanical applications where a compact, consistent pulling force is required.

What are the specifications of the SPEC MH03000371000M extension spring?

The SPEC MH03000371000M is a music-wire extension spring with a 1 in free length, 0.037 in wire diameter, and 0.3 in O.D. It comes in a 5-pack with an oil finish. These dimensions make it suitable for light to moderate tension loads in machinery and equipment where space is limited.

Where to buy SPEC extension springs in worldwide?

3G Electric supplies SPEC extension springs like the MH03000371000M to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial sourcing partner, we provide genuine SPEC parts across 14 departments, including springs, fasteners, and power transmission components.

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 O.D. to your assembly's space and required tension. The MH03000371000M offers a 1 in free length and 0.037 in wire diameter for light loads. Always verify the spring's maximum extended length and load capacity against your application's demands.

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
Extension Spring: 302 Stainless Steel, 8 in Free Lg, 0.125 in Wire Dia, 1 in O.D. (MPN H10001258000S)
SPEC
Extension Spring: 302 Stainless Steel, 8 in Free Lg, 0.125 in Wire Dia, 1 in O.D. (MPN H10001258000S)
Extension Spring: 302 Stainless Steel, 4 1/2 in Free Lg, 0.037 in Wire Dia, 0.36 in O.D., 3 PK (MPN H03600374500S)
SPEC
Extension Spring: 302 Stainless Steel, 4 1/2 in Free Lg, 0.037 in Wire Dia, 0.36 in O.D., 3 PK (MPN H03600374500S)
Extension Spring: 302 Stainless Steel, 2 1/2 in Free Lg, 0.029 in Wire Dia, 0.18 in O.D., 5 PK (MPN H01800292500S)
SPEC
Extension Spring: 302 Stainless Steel, 2 1/2 in Free Lg, 0.029 in Wire Dia, 0.18 in O.D., 5 PK (MPN H01800292500S)
Extension Spring: Music Wire, 1 3/8 in Free Lg, 0.016 in Wire Dia, 0.12 in O.D., 5 PK (MPN MH01200161370M)
SPEC
Extension Spring: Music Wire, 1 3/8 in Free Lg, 0.016 in Wire Dia, 0.12 in O.D., 5 PK (MPN MH01200161370M)
Extension Spring: Music Wire, 1 1/4 in Free Lg, 0.034 in Wire Dia, 0.24 in O.D., 5 PK (MPN MH02400341250M)
SPEC
Extension Spring: Music Wire, 1 1/4 in Free Lg, 0.034 in Wire Dia, 0.24 in O.D., 5 PK (MPN MH02400341250M)
Extension Spring: Music Wire, 2 in Free Lg, 0.055 in Wire Dia, 0.75 in O.D., 3 PK (MPN MH07500552000M)
SPEC
Extension Spring: Music Wire, 2 in Free Lg, 0.055 in Wire Dia, 0.75 in O.D., 3 PK (MPN MH07500552000M)
Extension Spring: Music Wire, 68.9 mm Free Lg, 1.4 mm Wire Dia, 10 mm O.D., 2 PK (MPN HM1001400069M)
SPEC
Extension Spring: Music Wire, 68.9 mm Free Lg, 1.4 mm Wire Dia, 10 mm O.D., 2 PK (MPN HM1001400069M)
Extension Spring: Music Wire, 62.8 mm Free Lg, 2 mm Wire Dia, 22 mm O.D. (MPN HM2202000063M)
SPEC
Extension Spring: Music Wire, 62.8 mm Free Lg, 2 mm Wire Dia, 22 mm O.D. (MPN HM2202000063M)