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Unit of Measure

T thread, -4H5H/4H6H Thread size

 N/A MJ18x1.5

T thread, -4H5H/4H6H Controlled minor dia

 N/A 16.576-16.652

A - MIN

 N/A 26.720

B - MIN

 N/A 38.800

C

 N/A 25.40-25.48

D

 N/A 18.65-18.70

E

 N/A 3.80-4.05

F

 N/A 6.36-6.49

G

 N/A 9.500- 9.630

H (MIN)

 N/A 20.800

J (No. of Teeth)

 N/A 38

K (MIN)

 N/A 2.700

Porting Tool No.

 N/A RPTM192

Serration Broach Tool - Hand Held Impact Type

 N/A RFMOPB192

Serration Broach Tool - Hand Held Non-Impact Type

 N/A RFMOPB192HDB

Serration Broach Tool - EDM Type

 N/A RFMOPB192ED3

Serration Broach Tool - Wobble Type

 N/A RFMOPB192WB

N/A NOTES: UNLESS OTHERWISE SPECIFIED
1. THE DRILL AND PORTING TOOL METHOD OF PREPARING THE MACHINED CAVITY IS MANDATORY. DRILL 0.4-0.7 SMALLER THAN CONTROLLED MINOR DIA SPECIFIED: THE PORTING TOOL
WILL SIZE THE MINOR DIA AND PROVIDE BALANCE OF CAVITY CONFIGURATION READY FOR BROACHING SERRATION. USE OF PORTING TOOL AND BROACH TOOL SPECIFIED IS MANDATORY TO PROVIDE PROPER PORT CONFIGURATIONS.
2. AFTER SERRATIONS ARE BROACHED, CHIP REMOVAL IS REQUIRED.
3. THE MINIMUM BOSS DIA "B" AND BOSS LENGTH "H" SHOWN ARE SATISFACTORY FOR USE IN MATERIALS THAT EXHIBIT A MINIMUM SHEAR STRENGTH OF 140MPa.