MIL-DTL-14824C(AR)
3.2 Components and assemblies. The components and
assemblies shall comply with all requirements specified on
drawing 10535925.
3.2.1 Body prior to nosing. The materials, components and
assemblies shall be in accordance with dwg. 10535927.
3.2.2 Body Machined (prior to band seat machining and
threading nose). The materials, components and assemblies shall
be in accordance with dwg. 10535927.
3.2.3 Body. The materials, components and assemblies shall
be in accordance with dwg. 10535927.
3.2.4 Body Assembly. The materials, components and
assemblies shall be in accordance with dwg. 10535926.
3.2.5 Projectile, HE, 155MM,M107 Metal Parts Assy. The
materials, components and assemblies shall be in accordance with
dwg. 10535925.
3.2.6 Projectile, 155MM, HE, M107 Metal Parts Assembly
Destructive Lot Acceptance. The materials, components and
assemblies shall be in accordance with dwg. 10535925.
3.3 Ammunition lot numbering. Ammunition lot numbers shall
be assigned in accordance with MIL-STD-1168.
3.4 Mechanical properties. Heat treatment or stress relief
applied shall be uniform throughout each lot of projectiles and
shall be so performed and controlled as to produce in the
projectile the mechanical properties specified in 10535927.
3.4.1 Rotating Band. After application and subsequent removal
the rotating band shall have the following mechanical properties:
a.Tensile Strength -30,000 lbs per square inch
(PSI) minimum
b. Elongation 25 percent in one inch of gage
length, minimum
3.5 Projectile material defects.
3.5.1 Projectile cavity. The projectile cavity shall be free
from scale, fins, burrs, draw marks, laminations, imbedded
foreign matter and pits. Surface discontinuities which have a
fillet or corner radius smaller than .03 inch shall be rejected.
(see 6.5).
3.5.2 Projectile. The Projectile, including the cavity,
shall be free from cracks, splits, bursts, cold shuts, pipe,
porosity, inclusions, folds, seams, and other metal defects.
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