U, M12606-01 and M12606-02, unencased, permanent magnet loudspeakers with a 2-watt normal \(4-watt peak\) input. These loudspeakers are fungus-, and immersion-resistant, and have a voice coil impedance of 8 ?? 1 ohms. The cone and spider are made of polyamide-based phenolic material \(see 6.1\).

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MIL-DTL-12606E

b. A summary of the results of tests performed for periodic inspection, group C, including the number and mode of failures.

The summary shall include results of all periodic inspection tests performed and completed during the 12-month period. If

the summary of the test results indicates nonconformance with specification requirements, and corrective action

acceptable to the qualifying activity has not been taken, action may be taken to remove the failing product from the qualified

products list.

Failure to submit the report within 30 days after the end of each 12-month period may result in loss of qualification for the product. In

addition to the periodic submission of inspection data, the contractor shall immediately notify the qualifying activity at any time during

the 12-month period that the inspection data indicated failure of the qualified product to meet the requirements of this specification.

In the event that no production occurred during the reporting period, a report shall be submitted certifying that the company still has the

capabilities and facilities necessary to produce the item. If during 2 consecutive reporting periods there has been no production, the

manufacturer may be required, at the discretion of the qualifying activity, to submit the loudspeaker for testing in accordance with the

qualification inspection requirements.

4.5.6 Extent of qualification. Qualification for LS-445/U may be extended to cover qualification of M12606-02.

4.6 Quality conformance inspection.

4.6.1 Inspection of product for delivery. Inspection of product for delivery shall consist of groups A and B inspection.

4.6.1.1 Inspection lot. An inspection lot shall consist of all loudspeakers produced under essentially the same conditions and offered

for inspection at one time. Any of the three styles of loudspeakers (LS-445/U, M12606/01, or M12606/02) can be combined in an

inspection lot.

4.6.1.2 Group A inspection. Group A inspection shall consist of the inspections specified in table III, in the order shown.

4.6.1.2.1 Sampling plan. A sample of parts shall be randomly selected in accordance with table IV. Each inspection sample shall

include a proportional quantity from each of the different styles (LS-445/U, M12606/01, or M12606/02) produced and to be tested. If one

or more defects are found, the lot shall be rescreened and defects removed

4.6.1.2.2 Rejected lots. If an inspection lot is rejected, the contractor may rework it to correct the defects, or screen out the defective

units, and resubmit for reinspection. If one or more defects are found in the second sample, the lot shall be rejected and shall not be

supplied to this specification.