MIL-PRF-19/2D
1.2.3 Operating shaft and length. The operating shaft and length applicable to this specification are identified by a
two letter symbol. The first letter indicates the shaft style as specified in table III and the second letter indicates the
shaft length as specified in table IV.
TABLE III. Shaft style.
Symbol
Shaft
S
Slotted
TABLE IV. Shaft length
Length of shaft from mounting surface, nominal
Symbol
Bushings N and S
Bushings L and T
in inches (± 0.03125)
in inches (± 0.03125)
A
0.500
---
B
---
0.625
D
0.875
0.875
G
1.250
1.250
K
2.500
---
1.2.4 Resistance. The nominal total resistance and available tapers applicable to this specification are in
accordance with table V.
TABLE V. Resistance values and available tapers.
Nominal total resistance
Available
Nominal total resistance
Available
(in ohms)
taper(s)
(in ohms)
taper(s)
3
250
A
6
350
8
500
10
750
15
1,000
A, C, F
20
1,500
25
2,000
35
2,500
A, C, F
50
3,500
75
5,000
100
7,500
A
150
10,000
200
15,000
1.2.5 Resistance characteristic. The resistance characteristic applicable to this specification is in accordance with
table VI.
TABLE VI. Resistance characteristic.
Resistance
Resistance
Symbol
taper
tolerance
A
A
± 10 percent
C
C
E
F
2
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