Kodak M70/M90 Single-Blade Shutter .185" – Part 178641 + $10 Core

Restore proper operation of your Kodak M-Series movie projector with Kodak Shutter 178641. This is the single-blade .185" shutter used in compatible Kodak M70 and M90 movie projectors.

Original replacement shutters are no longer available new, so these shutters are professionally rebuilt using serviceable original shutter assemblies. Returning your old shutter provides the core needed to rebuild another unit and helps keep these increasingly scarce projector parts available.

Features & Benefits

• Replacement shutter for compatible Kodak M70 and M90 movie projectors
• Single-blade shutter
• .185" center hole / shutter-drive shaft size
• Kodak part number 178641
• Rebuilt original shutter assembly
• Replacement gear installed during rebuilding
• Helps keep vintage Kodak M-Series projectors operating
• $10 core charge applies when an old shutter is not returned
• Made in the USA

Specifications

Single-Blade .185" Shutter

Kodak M-Series projectors were produced with different shutter configurations, so identifying the shutter before ordering is important.

Part 178641 is the single-blade shutter for the .185" shutter-drive shaft configuration.

The difference between the available shaft sizes is extremely small. The two sizes are .185" and .187", a difference of only .002", so measuring the shutter-drive shaft with a digital caliper is recommended when the correct size is uncertain.

Rebuilt Because New Shutters Are No Longer Available

New original shutters for these projectors are no longer available. To keep replacement shutters in circulation, serviceable original shutter assemblies are rebuilt rather than discarded.

Returning your old shutter is important because it becomes the core from which another replacement can be rebuilt.

$10 Core Charge

This shutter is sold with a $10 core charge.

If you send us your old shutter with your order, you will not be billed the core charge.

If we do not receive an old shutter with your order, the $10 core charge will be billed. When you later return your old shutter, you will receive credit for the core.

Returning rebuildable shutters helps us maintain a supply of these increasingly difficult-to-find Kodak projector parts.

Choosing the Correct Shutter

Before ordering, confirm both the number of shutter blades and the shutter-drive shaft diameter.

For the .185" configuration:

• 178641 – Single-Blade, .185"
• 178642 – Double-Blade, .185"

Because .185" and .187" shafts differ by only .002", a digital caliper provides the most reliable way to distinguish between the two shaft sizes.

Ideal For

• Kodak M70 movie projector repair
• Kodak M90 movie projector repair
• Replacing a damaged or worn shutter
• Restoring vintage Kodak M-Series projectors
• Projectors requiring a single-blade .185" shutter
• Professional projector repair and restoration

Frequently Asked Questions

What is Kodak part 178641?
Part 178641 is a single-blade .185" shutter for compatible Kodak M-Series movie projectors.

Does this shutter fit the Kodak M70 and M90?
Yes. This replacement is intended for compatible Kodak M70 and M90 movie projectors requiring the .185" single-blade shutter.

Is this a single- or double-blade shutter?
Part 178641 is the single-blade version.

What does .185" refer to?
It identifies the shutter size corresponding to the .185" shutter-drive shaft.

How do I know whether I need .185" or .187"?
Measure the diameter of the shutter-drive shaft. Because the two sizes differ by only .002", using a digital caliper is recommended.

What is the .185" double-blade shutter?
The .185" double-blade version is Kodak part 178642. Part 178641 is the single-blade version.

Is this a new shutter?
No. New shutters are no longer available. This is a rebuilt original shutter assembly.

Why is there a core charge?
Replacement shutters must be rebuilt from existing original assemblies. Returning your old shutter gives us a core that can be rebuilt for another projector.

How much is the core charge?
The core charge is $10.

What happens if I send my old shutter with my order?
If we receive your old shutter with the order, you will not be billed the $10 core charge.

Can I return the old shutter later?
Yes. If you are initially billed the core charge, you will receive credit when you return your old shutter.

Micro-Tools makes every attempt to provide accurate information for each item. Actual packaging and/or specifications may be slightly different from the information and picture provided.