MIL-DTL-62567D(AT)
4.5.1.2.2 Group A failure. The supplier may rework a rejected torsion bar to correct the
defect(s) and resubmit it for inspection. Rework shall be within the confines of drawing and
specification requirements.
4.5.1.3 Group B inspection. Group B inspection shall consist of the inspections specified
in table III.
TABLE II. Group A inspection.
Inspection
Requirement
Inspection method
Surface indications
3.2.2.2
4.6.2
Surface finish
3.2.2.3
4.6.3
Workmanship
3.4
Visual
Spline major diameter
3.2.4
Go Ring Gage and Not Go
Ring Gage
External involute spline
3.2.4
Special Involute Go Composite
Ring Gage 10929033 and
Involute Not Go Sector Ring
Gage 10929035
4.5.1.3.1 Group B sampling. Frequency of inspection and/or any special arrangements
for establishing the frequency of inspection shall be as specified in the contract or purchase order
(see 6.2). Recommended requirements for a sampling plan are shown in 6.4.
4.5.1.3.2 Group B failure. The supplier may rework a rejected torsion bar to correct the
defect(s) and resubmit it for inspection. Rework shall be within the confines of drawing and
specification requirements.
4.5.1.4 Group C inspection. Group C inspection shall consist of the process inspections
specified in table IV.
4.5.1.4.1 Group C sampling.
4.5.1.4.1.1 Heat treatment. A minimum of one sample torsion bar or control specimen
shall be selected from each heat treatment lot.
4.5.1.4.1.2 Preset and protective coating. Unless an approved SPC plan is used
(see 6.4.2), a minimum of three torsion bars shall be selected at random during each work shift
for inspection of preset and protective coating.
4.5.1.4.2 Group C failure. Failure of a torsion bar or control specimen (see 4.6.1.1) to
meet the specified requirements in table IV shall be cause for rejection of the torsion bars
represented. Acceptance of production lots subsequent to failure shall not resume until
corrective action has been taken and three consecutive lots pass group C inspection.
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