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Reservoir Mounted Sight Glass, 5 inch Inch Length, 12 mm Threads, Black Epoxy-coated metal

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Description & Features

Constructed from durable black epoxy-coated metal this sight glass measures 5 inches in length with 12 mm threads. The front mount style allows straightforward installation from the exterior ideal for reservoirs with restricted interior access assuming the tank wall is suitable for tapping.

The unit is equipped with a clear card-type thermometer using red fluid offering precise temperature readings. The Buna-N seal material ensures dependable sealing performance maintaining system integrity.

Its design facilitates easy threading into pipe couplings within the reservoir or into thick wall reservoirs tapped for pipe thread. Moreover a 1/16 inch alignment adjustment ensures proper mounting catering to various industrial applications.

MPN: C1ZS99

Supplier Part Number: 1910000329

Specifications

A
5
B
2.99
C
6.25
Brand
Stauff-Special Quotes
Brand
Stauff Corporation
Pack Size
1.00
UOM
EA
Features
Front Mount
Key
C
Length
5 inch
Materials
Black Epoxy-coated metal
Seal Material
Buna-N
Supplier Part Number
1910000329
Thermometer
Card Type, Red Fluid
Thread 1
12 mm
Alternate Part Numbers
Alternate Part Number C1ZS99, Alternate Part Number MI-08752109, Alternate Part Number MINO-02491X93342, Alternate Part Number SNA 127 B-S-T-12, Alternate Part Number SNA-127-B-S-T-12, Alternate Part Number SNA127BST12
Product Weight
0.53 lbs

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Product Questions & Answers (2)

Question by: Norm B on Jun 23, 2025, 8:52 AM
What size threads does this thing have?
Answer by: Customer Support on Jun 25, 2025, 6:59 AM
This sight glass features 12 mm threads for installation.
Question by: Howard P on Mar 2, 2026, 7:39 PM
Got a reservoir with no interior access and walls thick enough to tap, will this unit thread straight in from the outside without needing to get inside the tank?
Answer by: Customer Support on Mar 3, 2026, 8:47 PM
Front mount styles like this one are built for exactly that situation. As long as the tank wall is thick enough to tap, you can install it entirely from the exterior. There's also a 1/16 inch alignment adjustment built in, so if the fit isn't perfectly flush right off the bat, you've got a little room to work with. No interior access needed.