MIL-PRF-39002/3C
3.3 Power rating. The power rating shall be 1.5 watts based on full load operation at an ambient temperature of
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85 C.
3.4 Resistance value. Resistance value shall be in accordance with table I.
TABLE I. Style RK11 resistor.
Nominal total
Nominal
Shaft length
Rated ac and dc
Type
resistance value
Dash
resolution
(slotted shaft style)
working voltage
Terminal
designation
(ohms)
number
(percent)
in inches ±.015
1/
(volts)
±5 percent
2/
RK11SLCS502
.850
5,000
0.17
122
S
0001
1/
For reference purposes only.
2/
Percent of resolution = 1/N x 100. N = number of turns.
3.5 Shaft length. Shaft length shall be in accordance with table I.
3.6 Shaft style. Shaft style shall be in accordance with table I.
3.7 Bushing. The bushing shall be locking.
3.8 Nominal resolution. Nominal resolution shall be in accordance with table I.
3.9 Rated working voltage. Rated working voltage shall be in accordance with table I.
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3.10 Mechanical travel. The mechanical travel shall be 360 .
3.11 Actual effective electrical travel. The actual effective electrical travel shall be 300 ±3 .
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3.13 Electrical output. The electrical output (in terms of percent of applied voltage) is linear with respect to the
angular position of the contact arm.
3.12 Hardware. Hardware shall be as specified in figure 1 and shall be corrosion resistant. (Hardware optional
between supplier and prime contractor.)
3.14 Rotational life. The rotational life cycle angle shall be not less than 98 percent of the effective electrical travel
angle. Electrical continuity shall be maintained throughout the cycle.
3.15 Mounting bushing. The mounting bushing shall withstand, without damage, a torque of from 15.5 inch-
pounds to 16.5 inch-pounds applied to tighten the mounting nut for five second.
3.16 Shaft to bushing seal (O-ring shaft seal) (see 4.2.1). Shaft to bushing seal shall have no evidence of a
continuous stream of bubbles emanating from the shaft to the bushing seal.
3.17 Pure tin. The use of pure tin, as an underplate or final finish is prohibited both internally and externally. Tin
content of resistor components and solder shall not exceed 97 percent, by mass. Tin shall be alloyed with a
minimum of 3 percent lead, by mass (see 6.5).
3.17 Marking. Due to size limitations, marking of the schematic diagram is optional.
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