MIL-PRF-23419/10C
REQUIREMENTS:
Interface and physical dimensions: See figure 1.
Applicable fuseholder: Grayhill Type 2-42, ultra miniature test clip or equivalent. For 7, 10, and 15
ampere fuses, use Grayhill Push-post number 29-100 or equivalent.
Case material: Ceramic or glass.
Finish: Epoxy coating.
Outgassing: When tested as specified in ASTM E595, the polymer sample shall meet the
following requirements:
Total mass loss (TML): Shall not exceed 1.0 percent.
Volatile condensable material (VCM): Shall not exceed 0.1 percent.
Samples of any polymeric materials used shall be cut into pieces having 0.38 inch (9.65 mm)
maximum dimension. A sample of 100 to 300 milligrams of material shall be weighed and then
placed in a vacuum chamber under the following conditions:
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Pressure: 10 torr or less.
Temperature of specimen: Maximum operating temperature of device.
Exposure time: 24 hours.
During this exposure, a collector plate 9.7 inches (246.4 mm) in diameter shall be held at
25° C ± 1° C near the sample. Immediately upon removal of the specimen and the collector plate
from the chamber, they shall be weighed. The total mass loss (TML) is sample mass before
exposure minus sample mass after exposure divided by the initial sample mass (expressed in percent
change). The volatile condensable material (VCM) is the increase in the weight of the collector plate
divided by the mass of sample (expressed in percent).
Outgassing (option): As an option for inspection to outgassing requirements (as stated above), a
minimum of 10 grams of each polymeric material in its final processed condition may be submitted to
the following NASA installation for outgassing test: Director, Material and Processes Laboratory,
EH41, Marshall Space Flight Center, Huntsville, AL 35812. As an alternate, a minimum of a single
device utilizing each material may be submitted to the Marshall Space Flight Center for outgassing
tests.
Terminals:
Material: Caps, 90/10, commercial brass; leads, copper.
Finish: Caps, silver or bright alloy plate; leads solder coated.
Strength: 7 pounds along terminal axis.
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