MIL-PRF-15160K
6.3.5 Bright alloy plated finish. Based on past experience, bright alloy plating .00008 inch (0.0020 mm) thick for
brass terminals and .0002 inch (0.0051 mm) thick for copper terminals with the following compositions, has been
used successfully to meet the performance requirements of this specification:
Copper
-
50 to 60 percent
Tin
-
25 to 28 percent
Zinc
-
14 to 18 percent
6.3.6 Bright dip. When bright dip is used (see 3.1), the metal parts are to be treated and washed to remove tarnish
before assembly. Plating is not required.
6.3.7 Label material. Based on past experience, a pressure sensitive polyester tape, Permacel, EE-6951
or equivalent has been used successfully to meet the performance requirements of this specification.
6.3.8 Solder on terminals. It is not good practice to have the electrical contact surface of a fuse holder in contact
with a soldered surface of a fuse. The soldered surface is relatively soft, causing a decreasing compressive force
which could lead to temperature rise and voltage drop issues. A soldered end may deform under that compressive
force causing an unreliable electrical connection. Further, the potential of a dissimilar metal versus the fuse holder
terminal could result in corrosion and material transfer to the fuse holder terminal.
6.4 Environmentally preferable material. Environmentally preferable materials should be used to the maximum
extent possible to meet the requirements of this specification. As of the dating of this document, the U.S. Environmentally
Protection Agency (EPA) is focusing efforts on reducing 31 priority chemicals. The list of chemicals and additional
information is available on their website at https://www.epa.gov/osw/hazard/wastemin/priority.htm. Included in the list of 31
priority chemicals are cadmium, lead, and mercury. Use of the materials on the list should be minimized or eliminated
unless needed to meet the requirements specified herein (see section 3).
6.5 Qualification. With respect to products requiring qualification, awards will be made only for products which are,
at the time of award of contract, qualified for inclusion in Qualified Products List whether or not such products have
actually been so listed by that date. The attention of the contractors is called to these requirements, and
manufacturers are urged to arrange to have the products that they propose to offer to the Federal Government tested
for qualification in order that they may be eligible to be awarded contracts or orders for the products covered by this
specification. Information pertaining to qualification of products may be obtained from the DLA Land and Maritime,
ATTN: DLA Land and Maritime-VQH, 3990 E. Broad Street, Columbus, OH 43213-1199, or by e-mail:
VQWebTeam@dla.mil. An online listing of products qualified to this specification may be found in the Qualified
Products Database (QPD) at https://www.landandmaritime.dla.mil/programs/qmlqpl/
6.5.1 Provisions Governing Qualification. Copies of SD-6, "Provisions Governing Qualification" may be obtained
from the DLA Document Services, Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.), online at
6.6 Definitions. The term "relative overload interrupt time" refers to relative opening time, and "overload interrupt"
refers to overload opening.
6.7 Subcontracted material and parts. The packaging requirements of referenced documents listed in section 2 do
not apply when material and parts are acquired by the contractor for incorporation into the equipment and lose their
separate identity when the equipment is shipped.
6.8 Subject term (key word) listing.
Nonrenewable fuse
Normal opening fuse
Overload interrupt
Power surge
Short circuit
Time delay fuse
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