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3G Electric
GAST AA640 Vacuum Gauge - Air Compressor Parts
GASTAir Compressor Parts

GAST AA640 Vacuum Gauge

The GAST AA640 is a vacuum gauge designed for use with air compressors. This product, identified by manufacturer part number AA640 and SKU AA640, is compatible with multiple GAST replacement part numbers including…

SKU 3G-OTH-150663

Also listed as: AA 640 · AA-640

Brand
GAST
Item
AA640 Vacuum Gauge
Part Number
AA640
Category
Air Compressor Parts
Available to Order
Also known as:AA640GAST
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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

GAST
Manufacturer Part Number
AA640
Type
33K840/33K842/36XD62/36XD63/36XD64/52DD89/52DD90/784T99/787XL8/800U31

Technical Documents

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

Product Description

The GAST AA640 is a vacuum gauge designed for use with air compressors. This product, identified by manufacturer part number AA640 and SKU AA640, is compatible with multiple GAST replacement part numbers including 33K840, 33K842, 36XD62, 36XD63, 36XD64, 52DD89, 52DD90, 784T99, 787XL8, and 800U31.

Frequently Asked Questions

What is the GAST AA640 vacuum gauge used for?

The GAST AA640 vacuum gauge measures vacuum levels in air compressor systems. It is a direct replacement for multiple GAST part numbers including LOA-101-HB, LOA-101-JR, 87R645-101-N470X, and 87R135-101-N270X, making it suitable for maintenance and repair of GAST compressors across industrial applications.

What are the specifications of the GAST AA640 vacuum gauge?

The GAST AA640 vacuum gauge has manufacturer part number AA640 and SKU AA640. It is compatible with replacement part numbers LOA-101-HB, LOA-101-JR, 87R645-101-N470X, 87R135-101-N270X, 87R642-101R-N470X, 86R123-101-N170X, 86R142-P001B-N270X, 120R689-P101-N800NX, 86R130-101-N270X, and 87R647-VS101-N470X. The gauge type is 86R130-101-N270X.

Where to buy the GAST AA640 vacuum gauge worldwide?

3G Electric supplies the GAST AA640 vacuum gauge to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance for international orders. Contact us to source this genuine GAST replacement part for your air compressor system.

How to install the GAST AA640 vacuum gauge?

Install the GAST AA640 vacuum gauge by first depressurizing the air compressor system. Remove the old gauge and apply thread sealant to the new gauge's fitting. Hand-tighten the gauge into the port, then use a wrench for a final quarter turn. Leak-test the connection before restoring system pressure.

Used in

Common applications for GAST
Packaging machinery — Gast 4AM and 6AM rotary vane air motors for indexing, tensioning, and film feed drives
Vacuum hold-down and pick-and-place — Gast 6066-V103 and 2565-V2A rotary vane vacuum pumps for suction cups and fixture clamping
Pneumatic conveying and aeration — Gast regenerative blowers and rotary vane compressors for air supply in material handling
Mixer and agitator drives — Gast 8AM-NRV-32A air motor for variable-speed, reversible mixing in hazardous or washdown areas
Compressor and vacuum pump maintenance — Gast AF817 leaf valves and AP513B O-rings for overhaul of existing pump heads
Winding and web handling — Gast reversible air motors for constant-tension winders and unwind stands
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GAST Products

3G Electric supplies GAST air compressor parts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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