MIL-K-70493 Keyboard, Data EntryThis specification establishes the requirements for manufacture and acceptance of the Data Entry Keyboard: 9355810, used in the Mortar Ballistics Computer MBC: M23. Throughout this specification this assembly is referenced as quot;keyboardquot;.

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MIL-K-70493(AR)

4.3 Inspection provisions.

4.3.1 Submission of product. Unless otherwise specified by the contracting officer, inspection lot size, lot formation, and presentation of lots shall be in accordance with "Submission of Product" provision of MIL-STD-105.

4.3.2 Examination and tests.

4.3.2.1 Components and subassemblies. All components and subassemblies shall be inspected in accordance with the inspection provisions contained in Quality Assurance Provisions (QAP's)

listed in the Technical Data Package (TDP). In the absence of QAP's, the applicable Quality Assurance Provisions of MIL-F-13926 shall apply.

4.4 Samplinq.

4.4.1 Environmental/performance. The keyboard shall be inspected to the requirements in Table II.

TABLE II. Classification of defects.

No. Characteristics Requirement Test Procedure

100% Inspection

2. LED illumination 3.2.1.2 4.6.4

3. ELB illumination 3.2.1.3 4.6.5

4. ESS temperature 3.3.2 4.6.1

5. ESS vibration 3.3.3 4.6.2

MAJOR: AQL 1.0% Defective

101. Workmanship 3.6 4.6.6

4.4.2 Special sampling. One display\processor circuit board. assembly shall be selected at random as a special sample from each. lot or each 100 produced which ever occurs first. The sample

Shall meet the requirements and tests in Table III.

TABLE III.

No. Characteristics

Classification of defects.

Requirement Test Procedure

201. Fabrication

202. Materials

3.4

3.7

Applicable Drawing\Visual

NOTE: The tests in Table III shall be conducted at room anbient

temperature (as specified in 3.3.1).