MIL-DTL-16878H
Printing shall be of a contrasting color (black or white is preferable) in a permanent ink or dye.
Identification printing shall be applied with the vertical axis of the printed characters either crosswise or
lengthwise on the wire when the nominal diameter of the wire is greater than .050 inch. Identification
printing shall be applied with the vertical axis of the printed characters lengthwise on the wire when the
nominal diameter of the finished wire is .050 inch or smaller. Printed characters shall be complete and
legible to the unaided eye.
3.8 Workmanship. Wire shall be free of kinks, abrasions, and cracked or peeled surfaces.
4. VERIFICATION
4.1 Test equipment and inspection facilities. Test and measuring equipment and inspection facilities
of sufficient accuracy, quality and quantity to permit performance of the required inspections shall be
established and maintained by the contractor. The establishment and maintenance of a calibration
system to control the accuracy of the measuring and test equipment shall be in accordance with
NCSL Z540.1.
4.2 Classification of inspections. Inspection requirements specified herein are classified as follows:
a. First article inspection (see 4.3).
b. Conformance inspection (see 4.4).
4.3 First article inspection. When required (see 6.2), first article inspection shall consist of all of the
tests in groups A, B, and C of table IV.
4.4 Conformance inspection. Conformance inspection shall consist of the inspections listed in
groups A and B of table IV. Conformance inspection shall be performed on every lot of wire procured
under this specification.
4.4.1 Unit of product. The unit of product shall be the quantity of wire on one coil, one reel, or one
spool, as applicable.
4.4.2 Inspection lot. Unless otherwise specified (see 6.2), an inspection lot shall consist of all wire of
the same PIN, produced under essentially the same conditions, and presented for inspection and
shipment at one time.
4.4.3 Group A inspection. Group A inspection shall consist of the inspections specified in group A of
table IV. Group A inspection may be performed at an appropriate stage of the manufacturing operation
rather than on the finished wire.
4.4.3.1 Visual and mechanical examination (except for splices). Three samples representative of the
inspection lot shall be selected. Failure of any sample to pass these examinations shall constitute failure
of the lot.
4.4.3.2 Insulation flaws. Wire shall be subjected to the insulation flaws test of 4.5.2. Insulation
breakdowns resulting from this test, and ends or portions not subjected to the test, shall be cut out of the
finished wire.
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