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Page Title:
Table 2. Size code numbers for fittings. |
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|  MIL-DTL-52618/7D
Part or identifying numbers. The military specification sheet number, configuration code letter, size code
numbers, thread direction code letter and finish code letter are combined to form the part or identifying
number. PIN numbers are assigned as follows:
-
X
X
X
X
M52618/7
Finish code letter (see table IV)
Thread direction code letter (see table III)
Size code numbers (see table II)
Configuration code letter (see table I)
Specification sheet number
TABLE I. Configuration code letter for fittings.
Description
Configuration code
Solid pattern
P
Cored pattern
Q
Hollow cored pattern
R
Countersunk pattern
S
TABLE II. Size code numbers for fittings.
Nominal pipe size
Size code numbers
(inch)
1/8
01
1/4
02
3/8
03
1/2
04
3/4
05
1
06
1 1/4
07
1 1/2
08
2
09
2 1/2
10
3
11
3 1/2
12
4
13
2
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