MIL-DTL-52872D
Item
Description
Identification
Quantity
No.
1
Stable base drawings of
13220E3220, sheets 2,
1 per sheet (see
processor printed wiring
3, and 4
note 1)
board (PWB)
2
Stable base drawings of
13220E3240, sheets 2
1 per sheet (see
transceiver (PWB)
and 3
note 2)
Notes:
1.
Provided only when complete UMSs, processors or processor CCAs are
procured.
2.
Provided only when complete UMSs, transceivers or transceiver CCAs
are procured.
3.11. Workmanship. Workmanship shall be in accordance with the guidelines
and guidance paragraphs of MIL-HDBK-454, guideline 9.
3.11.1.
Welding.
Sheet metal welding shall be in accordance with AWS
D9.1.
4.
VERIFICATION
4.1. Classification of inspections.
The inspection requirements specified
herein are classified as follows:
a.
First article inspection (see 4.2).
b.
Conformance inspection (see 4.3).
4.2.
First article inspection.
4.2.1. Examination. Each first article UMS and major components or
transducer kits when furnished separately shall be examined as specified in
4.4.1. Presence of one or more defects shall be cause for rejection.
4.2.2.
Tests.
4.2.2.1. Complete UMS. The complete UMS shall be subjected to the tests
marked "X" in column 1 of table II. Individual testing of major components of
the complete UMS is not required. Failure of any test shall be cause for
rejection. Unless otherwise specified (see 6.2), five UMSs shall be subjected
to environmental tests (see 4.4.2.5), twelve UMSs shall be subjected to the
reliability test (see 4.4.2.7) and, when required (see 6.2), one UMS, selected
from the environmental test units, shall be subjected to the electromagnetic
susceptibility test (see 4.4.2.6).
4.2.2.2. Major components or transducer kits furnished separately. Major
components or transducer kits furnished separately shall be subjected to the
tests marked "X" in column 1 of tables III through V. Failure of any test
shall be cause for rejection. Unless otherwise specified (see 6.2), five
units shall be subjected to each test.
4.3.
Conformance inspection.
4.3.1. Sampling. Sampling for tests shall be in accordance with
ANSI/ASQC-Z1.4. Sample size shall be determined by using tables I and IIA,
special inspection level S-2. A lot shall be accepted when no defects are
found and rejected when one or more defects are found. Samples shall be
randomly selected from production lots.
11
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