MIL-PRF-1/1688C
assembly.
18. Applies to location of center of guard pipe only.
19. Clearance to adapter guard pipe must be sufficient to allow use of S. S. White Co. No. 2666X end fitting (13/32 diameter).
20. All solder joints on mounting plate and guard pipe shall be soldered to provide a hermetic seal.
21. Optical location of tuning spline, tube to be supplied with spline located as specified by customer.
22. This dimension shows relation between a plane passing through lateral center of anode and a plane through center of guard
pipe.
23. Reference plane "A" is defined as a plane passing along the face of the mounting plate.
24. Reference plane "B" is defined as a plane perpendicular to plane "A" passing through the center of the holes as shown.
25. Reference plane "C" is defined as a plane mutually perpendicular to planes "A" and "B" passing through the center of the
hole as shown.
26. The letter "A" has been added to indicate external thread, not unified thread.
6
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