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UMA 2-1/4" SUCTION GAUGE 0-10 IN HG 3-102-13 NON TSO

Part# 10-02359
MFR Model# 3-102-13
2-1/4"Suction--0-10 inches HGGA 4-5, RR 510-02359


1 inch (Refer to Image#1)
UMA Gyro Suction
Case: Molded ABS Plastic. Weight: 1.4 oz.

1-1/4 inch (Refer to Image #2)
UMA Gyro Suction
Case: Molded ABS Plastic.
Weight: 1.4 oz.

2-1/4 inch (Refer to Image #3)
UMA Gyro Suction
Case: Cast Aluminum
Weight: 4.7 oz.

Mounting Information

Click Here for 1 inch mounting diagram

Click Here for 1-1/4 inch mounting diagram

Click Here for 2-1/4 inch mounting diagram

For Gauge "type" please see the mounting diagram above
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.


dropped right in the little Cessna 150. quick and easy. hardest part is getting the old hoses off.

Goodfriend A
June 29, 2019

Eddie C
March 10, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: For part # 10-00090 which size suction hose is needed.

The fitting on the back of the instrument is 1/8".

Q: What does the P and V stand for on the holes on the back of the gage? I assume the V is for vacuum, but I am confused about the P.

P - Pressure | V - Vent

Q: For the 2.25 gauge...what fittings are needed on the back to connect to the 1/4 hoses from the back of the instruments?

You can find the mounting diagrams in the overview tab for more information. The size 1/8" pipe thread in both places.

Q: two questions: is it PMA for installation in a Cessna 172? Can the threaded retaining ring that secures the gauge to the exterior panel be purchased separately?

This suction gauge does not have any certification.

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