MIL-DTL-85K
4.4.1.3.2 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. Resubmitted lots shall be
inspected using tightened inspection. Such lots shall be separate from new lots, and shall be clearly
identified as reinspected lots.
4.4.1.3.3 Disposition of sample units. Sample units which have passed all the group B inspection may
be delivered on the contract.
4.4.1.4 Group C inspection. Group C inspection shall consist of the examinations and tests specified in
table VI, in the order shown. Group C inspection shall be made on sample units selected from inspection
lots which have passed group A and group B inspections.
TABLE VI. Group C inspection.
Requirement
Test method
Examination or test
paragraph
paragraph
Surface roughness- - - - - - - - - - - -
Scratches - - - - - - - - - - - - - - - - - -
4.5.8
4.4.1.4.1 Sampling plan. The first two lengths of the production lot shall be tested. Thereafter one out
of each 25 lengths shall be tested.
4.4.1.4.2 Failures. If one or more sample units fail to pass group C inspection, the lot shall be
considered to have failed.
4.4.1.4.3 Disposition of sample units. Sample units which have been subjected to group C inspection
shall not be delivered on the contract.
4.5 Methods of examination and test.
4.5.1 Visual and mechanical examination. Waveguides shall be examined to verify that the materials,
design, construction, physical dimensions, finish, length, marking, perpendicularity, and workmanship are
4.5.1.1 Dimensions. Waveguides with 1-inch major outside dimension and over shall be measured at a
point at least 1 inch from the end; waveguides with less than 1-inch major outside dimension shall be
measured at least .5 inch from the end to ascertain that all dimensions are as specified (see 3.1) and that
the waveguide is of the specified length (see 3.1). Eccentricity may be measured at any point around the
periphery. For the purpose of determining conformance with the dimensional requirements prescribed
herein, any measured value outside the specified limiting values for any dimension shall be construed as
failing to meet specification requirements.
4.5.2 Bow (see 3.4). Bow is the departure from a straight longitudinal line connecting any two points 2
feet apart on the external surface of the waveguide without the effect of gravity or any other force. The
waveguide shall be so positioned during measurement that gravity will not tend to increase or decrease
the amount of bow. Measurements shall be made along any 2-foot portion of the total length.
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