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MIL-DTL-81963 Servocomponents, Precision Instrument, Rotating, Common Requirements And Tests, General Specification ForThis specification covers common requirements and tests for analog, digital and analog/digital precision instrument rotating servocomponents \(synchros, electrical resolvers, electrical, linear resolvers, transolvers, shaft angle encoders, servomotors, tachometer-generators, servomotor-tachometer generators, stepping motors, and gear heads\). This specification will be used with the applicable general specification, which covers a particular class of servocomponents \(for example, synchros\), together with the documents and the specification sheet that cite MIL-DTL-81963 as a direct reference detailing the specific requirement for the individual servocomponent.

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MIL-DTL-81963C

NOTES:

1. Material: Aluminum alloy 2024, see ASTM B209.

2. Dimensions are in inches. Metric equivalents are given for general information only.

3. Unless otherwise specified, tolerances on dimensions are � .005.

FIGURE 1B. Standard disc for loading size 05 and 08 servocomponent shaft - Continued.

MANUFACTURER'S

SERIAL NUMBER

(SEQUENTIALLY FOR

NOMENCLATURE

EACH CONTRACT OR

(SEE NOTE 4)

PURCHASE ORDER)

DATE OF

SUPPLY VOLTS

FREQUENCY (Hz)

(SEE NOTE 4)

MANUFACTURE

(SEE NOTE 4)

U.S.

MANUFACTURER'S NAME,

"D" RADIUS

CAGE, AND

CONTRACT NUMBER

PART IDENTIFYING

NUMBER

MATERIAL

(SEE NOTE 4)

NUMBER (NSN)

LIMITING ENVELOPE

(REFERENCE ONLY)

Servocomponent

size

Inches (mm)

1.50 (38.10)

0.625 (15.88)

0.0625 (1.59)

0.125 (3.18)

0.0625 (1.59)

2.25 (57.15)

0.625 (15.88)

0.0625 (1.59)

0.125 (3.18)

0.0625 (1.59)

11, 15

3.00 (76.20)

0.75 (19.05)

0.094 (2.39)

0.125 (3.18)

0.094 (2.39)

18, 23, 31, 37

3.625 (92.08)

1.00 (25.4)

0.094 (2.39)

0.25 (6.35)

0.094 (2.39)

FIGURE 2. Standard marking.