The Government reserves the right to Per-.
104. Graduation marks not filled as spec-
form any of the inspections set forth in the
ified. Black medium chipped or
specification where such instructions are
deemed necessary to aSsure supplies and
105. Identification marking not as spec-
services conform to prescribed requirements.
4.2 Classification of inspection Inspection
4.3.2 Tests. The protractor shall be tested
shall be classified as follows:
as specified in table I. Failure to PasS any test
shall be cause for rejection.
(a) Preproduction inspection of the pro-
4.4 Production inspection.
(b) Production inspection of the pro-
4.4.1 Sampling. Sampling for examination
and tests shall be in accordance with Standard
(c) Inspection of preparation for deliv-
MIL-STD-105. Inspection level shall be L-II
for examination and L-1 for tests.
4.3 Preproduction inspection.
4.4.2 Examination. Samples selected in ac-
4.3.1 Examination. The protractor shall be
cordance with 4.4.1 shall be examined for the
examined for the following defects. Presence
defects listed in 4.3.1. AQL shall be 2.5 per-
of one or more defects shall be cause for re-
4.4.3 Tests.. Samples selected in accordance
101. Dimensional nonconformance to the
with 4.4.1 shall be tested as specified in table
I. AQL shall be 0.10 percent defective. Any
102. Nicks, burrs, or rough edges on ruling
sample failing to pass one or more tests shall
and protractor edge or face.
be considered defective.
103. Graduation marks not sharply de-
4.5 Inspection schedule Inspection sched-
fined, missing, or not of proper
ule is contained in table I.
Perform inspection marked
comparison with a master scale
curate to within plus or minus
means of a circular measuring machine, sine
The accuracy of linear graduations
bars, or angular gage blocks of similar
be determined by direct comparison
Evidence of any graduation
a master scale which is accurate
either linear or angular,
within the toler-
plus or minus 0.001 inch at
ances specified in
by means of beam
bar having a least reading of not more than
0.025 millimeter. The accuracy of angular
straightness of the ruling edge of the range
determined by direct