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|  MIL-F-48877A (AR)
3.21 Fuze arming. The fuze, after being temperature
conditioned, shall meet the following requirements.
3.21.1 Ambient temperature arming time. The fuze assembly,
after conditioning at a temperature of 70 15F for 2 hours
minimum, shall arm between 0.70 and 0.90 second when subjected to
an arming acceleration of 55.0 0.5 g.
3.21.2 Low temperature arming time. The fuze after being
conditioned at a temperature of -50 5F for 8 hours minimum,
shall arm between 0.70 and 0.90 second when subjected to an
arming acceleration of 55.0 0.5 g.
3.21.3 High temperature arming time. The fuze after being
conditioned at a temperature of +150F 5F for 8 hours minimum
shall arm between O.70 and 0.90 second when subjected to an
arming acceleration of 55.0 0.5 g.
3.22 Charge-arm-function. The fuze shall be charged with
government approved. Ballistic Firing Test Set through its
umbilical terminals, armed in accordance with fuze requirement
3.21.1 and shall, upon the closure of its setback weight switch,
exhibit correspond ing function time delays as shown in 4.5.35.2.
3.23 Ballistic firing. The fuze shall perform properly
following temperature conditioning for a minimum of 8 hours after
stabilization at: -50F 5F, 70F 15F (ambient) and +150F
5F.
The fuze shall function in accordance with 4 .5.35.2 after
motor ignition. When properly charged and armed, the fuze shall
function the detonator high order on expiration of the preset
time delay.
3.24 Data requirements. The contractor shall generate data
in accordance with the requirements of the data item descriptions
cited in 6.3.
3.25. Workmanship.
All parts and assemblies shall be free
3.25.1 Mechanical.
from burrs, chips, sharp edges, cracks, unblended radii, surface
defects, dirt, grease, rust, porosity, warpage, burn marks,
checks, blisters, excess flash, corrosion products and other
foreign matter. The cleaning method used shall not be injurious
to any part nor shall the parts be contaminated by the cleaning
Surface coating shall be continuous except for a few
agents.
slight scratches not exposing base materials. All required
markings shall be neat and legible.
3.25.2 Electrical. Cable assemblies and wires shall be
dressed in such manner as to prevent pinching or chafing of the
wire Insulation. Ends of wires shall be free from burrs, sharp
edges, or points. All parts shall be free from flux, chips,
dirt, grease, rust, or foreign material.
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