MIL-PRF-19/3D
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
350
A
6
500
8
750
10
1,000
A, C, F
15
1,500
20
2,000
25
2,500
35
3,500
A, C, F
50
5,000
75
7,500
100
10,000
A
150
15,000
200
20,000
250
25,000
1.2.5 Resistance characteristic. The resistance characteristic applicable to this specification is in accordance with
table VI.
TABLE VI. Resistance characteristic.
Symbol
Resistance taper
Resistance tolerance
± 10 percent
A
A
± 10 percent
C
C
± 10 percent
E
F
2
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