MIL-DTL-17060G(SH)
d. The Inspection and Test Plan Report, as described in Appendix H, should be obtained whenever a
contractor's past performance warrants verification of their test and quality assurance procedures.
e. The Test/Inspection Report, as described in Appendix D, establishes a permanent record of the first article,
periodic and quality assurance tests and inspections. The report should be furnished to the Government if a
contractor's previously furnished motors of the same or similar design exhibited quality deficiencies. In the absence
of quality deficiencies, the report should be kept at the manufacturer's facility and should be available to the
Government. Reports should be kept for 5 years. The report should also be used to furnish a manufacturer's request
for shock test extension.
f. The Airborne and Structureborne Noise Test Reports, as described in Appendix G, should be obtained
whenever the contractor's past performance or criticality of the motor warrants verification of noise test results.
g. The first article inspection is the only source of much of the test and inspection data contained in the
Engineering drawings of Appendix B. The Engineering drawings are critically important to the Government as
indicated above. Therefore, the first article inspection is also critically important and should be required (see 4.2).
h. The material test (see 4.6.1) should not be required as part of an inspection unless the contracting officer
considers the expectation of material deficiencies to warrant the inspection.
6.4 First article. When a first article inspection is required, the item should be a first article sample. The first
article should consist of one unit. The contracting officer should include specific instructions in acquisition
documents regarding arrangements for examinations, approval of first article test results and disposition of first
articles. Invitations for bids should provide that the Government reserves the right to waive the requirements for
first article inspection to those bidders offering a product which has previously passed first article inspection.
Bidders offering such products, who wish to rely on such test results, must furnish such evidence with the bid.
6.5 Provisioning. Provisioning Technical Documentation (PTD), spare parts, and repair parts should be
furnished as specified in the contract. When ordering spare parts or repair parts for the equipment covered by this
specification, the contract should state that such parts and repair parts should meet the same requirements and
quality assurance provisions as the parts used in the manufacture of the equipment. Packaging for such parts should
be specified.
6.6 Definitions. The following definitions apply wherever such terms appear in this specification:
6.6.1 Back (of motor). The back or drive end of a motor is the end which carries the coupling or driving
pulley.
6.6.2 Bearing mean diameter. The bearing mean diameter is the average of a bearing's outer and inner
diameters.
6.6.3 Breakdown torque. The breakdown torque of a motor is the maximum torque which it will develop with
rated voltage applied at rated frequency, without an abrupt drop in speed.
6.6.4 Duty. The following definitions apply to duty:
6.6.4.1. Continuous duty. Continuous duty is a requirement of service that demands operation at a substantially
constant load for an indefinite time.
6.6.4.2 Intermittent duty. Intermittent duty is a requirement of service that demands operation for alternate
intervals of load and no-load; load and rest; or load, no-load, and rest.
6.6.4.3 Varying duty. Varying duty is a requirement of service that demands operation at loads and for
intervals of time, both of which may be subject to wide variation.
6.6.4.4 Short-time duty. Short-time duty is a requirement of service that demands operation at a substantially
constant load for a short and specified time.
6.6.4.5 Variable speed drive (VSD) duty. VSD duty is a requirement of service in which a motor is operated
with variable voltage and frequency provided by a VSD to effect continuous speed change over a specific range.
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