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Page Title: Table IV. Inspection Lot Tests - Continued
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MIL-R-63997B(AR)
Endurance
4 7
4.7.8
3.4.7
4
Rifles
80 (30 Rnd)
M a g a z i n e s3
8 0 (30 Rnd)
1
Failure  of  the  sample,  unless  otherwise  specified  in  the
applicable  test  method  to  meet  the  requirements  shall  cause
rejection  of  the  represented  lot.
2
Failure of one rifle in the sample of thirty-two to meet
the requirements shall cause a second sample to be tested from the
The second sample shall consist of thirty-two rifles,
same lot.
exclusive  of  the  first  thirty-two,  (Cumulative  sixty-four
rifles).
Failure  of  two  or  more  rifles  in  the  first  sample  or  the
combined first and second sample shall be cause for rejection of
the represented lot.
3
The 30 round magazines selected for the endurance test
shall  be  visually  and  manually  inspected  by  the  contractor  for
workmanship and completeness of assembly and determined to be
satisfactory  prior  to  test.
4
When five successive inspection lots meet the requirements,
the sample Shall be Selected from, group o f  f i v e  c o n s e c u t i v e  l o t s
If  rejection  of  a
or  a  week's  production,  whichever  is  larger.
group of five lots or a week's production occurs at any time, the
inspection lot size of 1,000 shall be reinstated and the above
procedure repeated in returning to the five lot (or larger) groups.
5
The sample shall be selected from each inspection lot of
repair  parts.
6
When rifles are produced concurrently by more then one
manufacturer,  each  manufacturer  shall  forward  five  rifles  monthly
(see  6.1)  for  the  interplant  interchangeability  test.  The
contractor will be informed of any failure of the rifles to meet
the  prescribed  requirements.
7
When five successive inspection lots meet the requirements,
the sample shall be selected from groups of" five Consecutive lots
If  rejection  of  a
or  a  week's  production  whichever  is  greater.
group of five lots (or more) occurs due to an identifiable Class
II  or  III  malfunction  cause,  to  an  identifiable  Class  I
m a l f u n c t i o n  c a u s e  w h i c h  i s  p r e v a l e n t  i n  t h e  l o t~ o r f a i l u r e o f a
retested  lot,  the  inspection  lot  size  of  1,000  shall  be  reinstated
and the above procedure repeated in returning to the five lot (or
(For
definition
of
Class
I,II,
and
III
see
6.5.5.)
larger)  group.
33

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