Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

AMPCO Hook Spanner Wrench: 15/32 in to 9/16 in, 4 1/4 in Overall Lg, 1/4 in Hook Thick - Fixed-Hook Spanner Wrenches
AMPCOFixed-Hook Spanner Wrenches

AMPCO Hook Spanner Wrench: 15/32 in to 9/16 in, 4 1/4 in Overall Lg, 1/4 in Hook Thick

The AMPCO Hook Spanner Wrench is a fixed-hook spanner wrench designed for use with lock nuts and retaining rings. It accommodates a hook size range of 15/32 in to 9/16 in, with a 1/4 in hook thickness and a 4 1/4 in…

SKU 3G-OTH-304796

Brand
AMPCO
Item
Hook Spanner Wrench: 15/32 in to 9/16 in, 4 1/4 in Overall Lg, 1/4 in Hook Thick
Category
Fixed-Hook Spanner Wrenches
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 — 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

AMPCO
Manufacturer Part Number
7400
Type
Nonsparking
Overall Lg
4 1/4 in
Hook Thick
1/4 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

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

Product Description

The AMPCO Hook Spanner Wrench is a fixed-hook spanner wrench designed for use with lock nuts and retaining rings. It accommodates a hook size range of 15/32 in to 9/16 in, with a 1/4 in hook thickness and a 4 1/4 in overall length. This nonsparking tool is suitable for environments where spark prevention is required.

Frequently Asked Questions

What is the AMPCO Hook Spanner Wrench used for?

The AMPCO Hook Spanner Wrench is used to tighten or loosen lock nuts and retaining rings in industrial settings. Its nonsparking design makes it suitable for hazardous environments where spark prevention is critical, such as oil refineries, chemical plants, and gas facilities.

What are the specifications of the AMPCO Hook Spanner Wrench?

The AMPCO Hook Spanner Wrench (MPN 7400) has a hook size range of 15/32 in to 9/16 in, a hook thickness of 1/4 in, and an overall length of 4 1/4 in. It is a nonsparking, fixed-hook spanner wrench designed for use with lock nuts and retaining rings.

Where to buy the AMPCO Hook Spanner Wrench worldwide?

You can source the AMPCO Hook Spanner Wrench through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this nonsparking tool.

How to select the right AMPCO Hook Spanner Wrench?

To select the correct AMPCO Hook Spanner Wrench, match the hook size range to your lock nut or retaining ring dimensions. For the MPN 7400, the hook fits 15/32 in to 9/16 in. Ensure the hook thickness of 1/4 in engages properly. Always verify the tool is nonsparking for your environment.

Used in

Common applications for AMPCO
Oil and gas refinery maintenance — AMPCO combination wrench model 1512 for tightening flanges in classified areas
Chemical processing plant — AMPCO box-end wrench model 4422 for valve adjustment in volatile atmospheres
Grain handling facility — AMPCO open-end wrench model WO-22X23 for equipment repair in dust-hazard zones
Pharmaceutical manufacturing — AMPCO slotted screwdriver model S-39 for accessing control panels in cleanrooms
Mining operations — AMPCO impact socket model I-1D1-7/16 (4-PT) for heavy equipment maintenance underground
Aerospace fuel handling — AMPCO nut driver model ND-15MM for assembly of fuel system components

AMPCO Products

3G Electric supplies AMPCO fixed-hook spanner wrenches. 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
AMPCO Hook Spanner Wrench: 2 1/16 in to 2 3/16 in, 8 in Overall Lg, 5/16 in Hook Thick, Nonsparking (MPN 7414)
AMPCO
AMPCO Hook Spanner Wrench: 2 1/16 in to 2 3/16 in, 8 in Overall Lg, 5/16 in Hook Thick, Nonsparking (MPN 7414)
AMPCO Hook Spanner Wrench: 1 9/16 in to 1 11/16 in, 6 3/4 in Overall Lg, 5/16 in Hook Thick (MPN 7410)
AMPCO
AMPCO Hook Spanner Wrench: 1 9/16 in to 1 11/16 in, 6 3/4 in Overall Lg, 5/16 in Hook Thick (MPN 7410)
AMPCO Hook Spanner Wrench: 1 5/16 in to 1 7/16 in, 6 3/4 in Overall Lg, 5/16 in Hook Thick (MPN 7408)
AMPCO
AMPCO Hook Spanner Wrench: 1 5/16 in to 1 7/16 in, 6 3/4 in Overall Lg, 5/16 in Hook Thick (MPN 7408)
AMPCO Hook Spanner Wrench: 1 3/16 in to 1 1/4 in, 5 1/4 in Overall Lg, 1/4 in Hook Thick (MPN 7406)
AMPCO
AMPCO Hook Spanner Wrench: 1 3/16 in to 1 1/4 in, 5 1/4 in Overall Lg, 1/4 in Hook Thick (MPN 7406)
AMPCO Hook Spanner Wrench: 5 5/16 in to 5 3/4 in, 15 1/4 in Overall Lg, 1/2 in Hook Thick (MPN 7428)
AMPCO
AMPCO Hook Spanner Wrench: 5 5/16 in to 5 3/4 in, 15 1/4 in Overall Lg, 1/2 in Hook Thick (MPN 7428)
AMPCO Hook Spanner Wrench: 3 1/8 in to 3 1/2 in, 11 1/4 in Overall Lg, 5/16 in Hook Thick (MPN 7420)
AMPCO
AMPCO Hook Spanner Wrench: 3 1/8 in to 3 1/2 in, 11 1/4 in Overall Lg, 5/16 in Hook Thick (MPN 7420)

More from AMPCO

View all AMPCO parts
Fixed-hook spanner wrench with 5/16 in hook thickness and 9 3/4 in overall length. Nonsparking construction for use in environments where sparking tools are prohibited. Designed for tightening or loosening retaining rings and locknuts
AMPCO
Fixed-hook spanner wrench with 5/16 in hook thickness and 9 3/4 in overall length. Nonsparking construction for use in environments where sparking tools are prohibited. Designed for tightening or loosening retaining rings and locknuts
Fixed-hook spanner wrench with 1/2 in hook thickness and 13 1/4 in overall length. Used for adjusting or tightening locknuts and retaining rings within a capacity range of 4-5/16 in to 4-9/16 in. Suitable for industrial maintenance and assembly tasks requiring engagement with slotted nuts
AMPCO
Fixed-hook spanner wrench with 1/2 in hook thickness and 13 1/4 in overall length. Used for adjusting or tightening locknuts and retaining rings within a capacity range of 4-5/16 in to 4-9/16 in. Suitable for industrial maintenance and assembly tasks requiring engagement with slotted nuts
Fixed-hook spanner wrench with an 8 in overall length, 5/16 in hook thickness, and 1/8 in hook depth. Designed for adjusting or tightening locknuts and retaining rings within its size range. Suitable for industrial maintenance and assembly tasks requiring engagement with slotted nuts or rings
AMPCO
Fixed-hook spanner wrench with an 8 in overall length, 5/16 in hook thickness, and 1/8 in hook depth. Designed for adjusting or tightening locknuts and retaining rings within its size range. Suitable for industrial maintenance and assembly tasks requiring engagement with slotted nuts or rings
This fixed-hook spanner wrench is designed for turning slotted nuts and collars. Its nonsparking construction makes it suitable for use in environments where spark-free tools are required. Overall length is 5-1/4 inches with a hook thickness of 1/4 inch
AMPCO
This fixed-hook spanner wrench is designed for turning slotted nuts and collars. Its nonsparking construction makes it suitable for use in environments where spark-free tools are required. Overall length is 5-1/4 inches with a hook thickness of 1/4 inch
Fixed-hook spanner wrench with a hook thickness of 5/16 in and overall length of 9 3/4 in. Used for adjusting locknuts and retaining rings on round nuts with notches or holes in industrial machinery maintenance and assembly
AMPCO
Fixed-hook spanner wrench with a hook thickness of 5/16 in and overall length of 9 3/4 in. Used for adjusting locknuts and retaining rings on round nuts with notches or holes in industrial machinery maintenance and assembly
AMPCO Hook Spanner Wrench: 3 3/4 in to 4 in, 11 1/4 in Overall Lg, 5/16 in Hook Thick, Nonsparking (MPN 7422)
AMPCO
AMPCO Hook Spanner Wrench: 3 3/4 in to 4 in, 11 1/4 in Overall Lg, 5/16 in Hook Thick, Nonsparking (MPN 7422)
AMPCO Hook Spanner Wrench: 5/8 in to 13/16 in, 4 1/4 in Overall Lg, 1/4 in Hook Thick, Nonsparking (MPN 7402)
AMPCO
AMPCO Hook Spanner Wrench: 5/8 in to 13/16 in, 4 1/4 in Overall Lg, 1/4 in Hook Thick, Nonsparking (MPN 7402)
AMPCO Hook Spanner Wrench: 4 11/16 in to 5 1/8 in, 13 1/4 in Overall Lg, 1/2 in Hook Thick (MPN 7426)
AMPCO
AMPCO Hook Spanner Wrench: 4 11/16 in to 5 1/8 in, 13 1/4 in Overall Lg, 1/2 in Hook Thick (MPN 7426)