Style OL sight gauges, machined from hexagon bar stock, permit operators to check oil from either front or rear window. Sight glass has heavy oil-proof gaskets both top and bottom.
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Stock Thread
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B.
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C.
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D.
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G.
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Item #
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Top NPT
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Bottom NPT
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1/4-18*
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1/4-18*
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1-1/16
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23/32
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2-13/32
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1
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04281
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|||||
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3/8-18*
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3/8-18*
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1
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9/16
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2-3/8
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1-9/32
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04282
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1/2-14*
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1/2-14*
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1-1/8
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29/32
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2-15/16
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1-5/8
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04286
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*Female
Maximum operating pressure 120 psi
Maximum operating temperature -40° F to 250° F