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|  MIL-S-63348A(AR)
4.7.7.2.1.3 Recording of data.
The following data shall be
recorded:
a. Inspection lot number.
b. Weapon serial numbers.
c. All measurements required for headspace, firing pin
protrusion, trigger pull, functioning and accuracy
requirements before and after interchange of parts.
d. Cyclic rate of fire before and after interchange of parts.
e. Failure of any part to interchange.
f. Any damaged part that was replaced.
4.7.8 Endurance test. The endurance test shall be performed
during inspection lot testing in accordance with Table IV. Weapons
shall be held in a Government approved firing stand using a
Government approved timing gage for measurement of cyclic rate of
fire. The ammunition used for this test shall be as specified in
3.4.6.
4.7.8.1 Cleaning and lubrication. Weapons shall have been
lubricated as specified below at the beginning of the test and
cleaned and lubricated at the end of every cycle (600 rounds)
thereafter.
No other cleaning and lubrication shall be performed
during this test. At the close of each day's firing, the weapon
shall be-protected against corrosion.
*
Weapons shall have been lubricated
4.7.8.1.1 Lubrication.
using lubricant MIL-L-46000. Apply a light coat of oil to all
surfaces of the bolt carrier group. Apply one drop of oil in each
hole on the right side of the bolt carrier and the operating springs
(Do not apply
and in the open end of the bolt carrier key.
excessive oil in the bolt firing pin recess.)
.
4.7.8.1.2 Cleaning. Weapons shall be cleaned with a cleaning
solvent in accordance with MIL-C-372 and the following procedure
Barrel . Brush bore thoroughly with a brush soaked in
a.
cleaning solvent. Brush the bore from the chamber to the
muzzle using straight through strokes. Do not reverse
direction of brush until it extends beyond the muzzle.
Continue brushing until the bore is covered with solvent.
Dry the bore by pushing clean dry swabs through the
bore. Continue until the swab comes out clean and dry.
Clean dry compressed air may be used for preliminary
drying.
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