MIL-PRF-39002/1G
DEPARTMENT OF DEFENSE STANDARDS
-
Test Method Standard, Electronic and Electrical Component Parts.
(Copies of these documents are available online at https://assist.daps.dla.mil/quicksearch/ or from the
Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094).
2.3 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the
text of this document and the references cited herein (except for related specification sheets), the text of this
document takes precedence unless otherwise noted. Nothing in this document, however, supersedes applicable
laws and regulations unless a specific exemption has been obtained.
3. REQUIREMENTS
3.1 General. The requirements for acquiring the product described herein shall consist of this document and
3.2 Interface and physical dimensions. Resistors shall meet the interface and physical dimensions specified on
figure 1, as applicable.
3.3 Power rating. The power rating shall be 1.5 watts based on full load operation at an ambient temperature of
O
85 C.
3.4 Resistance value. Resistance value shall be in accordance with table I.
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 in accordance with table I.
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.
3.10 Mechanical travel. The mechanical travel shall be 300 ±5 .
O
O
3.11 Actual effective electrical travel. The actual effective electrical travel shall be 300 ±5 .
O
O
3.12 End resistance. The end resistance shall not exceed 3 percent of the nominal total resistance value or
1 ohm, whichever is greater.
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.
3.14 Hardware. The mounting nut supplied shall be 0.0625 inch (1.588 mm) thick and shall measure 0.3125 inch
(7.938 mm) across the hexagonal flats. For locking bushings, the locking nut shall be 0.125 inch (3.18 mm) thick and
shall measure 0.3125 inch (7.938 mm) across the hexagonal flats. Thread size shall be 1/4-32NEF-2B. An internal-
tooth lock washer shall be supplied and when mounted, shall have a maximum thickness of approximately 0.045 inch
(1.14 mm). If retainer rings are used, they shall be not thicker than 0.032 inch (0.81 mm).
3.15 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 6.4).
2
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business