Boeing 747 - Page 51

1
2
2
1
1
GRAIN DIRECTION
(23.6)
0.928 0.35
(8.9)
0.35
(8.9)
0.928
(23.6)
4.12
(104.6)
CHAMFER
0.080 X 15 ˚
ETCH OR STAMP THE REFERENCE STANDARD PART NUMBER NDT4115 AS SHOWN
ELECTRO-DISCHARGE MACHINE (EDM) NOTCH SIZE 0.085 (2.2) DEEP X 0.25 (6.3)
MATERIAL: ANY LOW CARBON STEEL CAN BE USED (4330, 4340)
2.50
(63.5)
0.17
(4.3)
0.40
(10.3)
NDT4115
45.0 ˚
30.0 ˚ (TYP)
0.14
(3.6)
R 0.20 (5.1) (TYP) EDM
NOTCH
0.75
(19.1)
0.75
(19.1)
X.XXX = ± 0.005
X.XX = ± 0.010
TOLERANCES:
X.XX = ± 0.1
X.X
= ± 0.25
SURFACE FINISH: 63 RA OR BETTER ON THE ENDS
_____ NOTES:
PART DECREASE TO AMBIENT
FURNACE
(OR SALT BATH) AND LET THE TEMPERATURE OF THE
OR IN A SALT BATH OF EQUAL TEMPERATURE FOR 25 MINUTES
2. AT THE END OF THE HEAT TIME REMOVE THE PART FROM THE
THE
MATERIAL MUST BE NORMALIZED AS FOLLOWS:
ALL DIMENSIONS ARE IN INCHES (mm IN PARENTHESES)
1. HEAT TREAT IN A FURNACE AT 1650 DEGREES FAHRENHEIT FOR 35 MINUTES
INCHES MILLIMETERS
LONG; MAXIMUM WIDTH 0.030 (0.8)
2130661 S0000459171_V1
Reference Standard NDT4115
Figure 2
747
NONDESTRUCTIVE TEST MANUAL
PART 4 54-30-07
Page 7
Nov 15/2015D6-7170
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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