MIL-C-8605B
4.5 Test conditions.
4.5.1 Test Flange. An approved flange conforming to MS24484 shall be used where
a test flange is specified herein. The poppet, poppet retainer, and spring shall have been
removed from the assembly.
4.5.2 Cleaning. Prior to testing the cap, all internal parts normally in contact with the
fuel shall be thoroughly cleaned to remove all foreign matter.
4.5.3 Test Fluid. Unless otherwise specified, fluid in accordance with MIL-C-7024 Type
II or air, shall be used for all tests.
4.5.4 Room Temperature. Unless otherwise specified, all tests shall be conducted with
0
the cap and test fluid at a temperature between 60°F and 90 F.
4.6 Test methods.
4.6.1 Examination of Product. The caps shall be certified to meet the material, finish
and protective coating requirements of the applicable drawings and specifications. Each cap
shall be examined to verify conformance with the dimensional and weight requirements of
this specification.
4.6.2 Functional. The cap shall be connected (inserted and locked) into the test fixture
illustrated in Figure 1 For caps equipped with pressure relief, apply -3 psig to the cap
through the adapter and verify the relief function. The negative pressure shall dissipate in
three seconds or less. For caps without automatic relief apply -3 psig and verify that the
force required to remove the cap is unaffected by the negative pressure. The maximum force
in the direction of the axis of the cap and the maximum torque required to connect or
disconnect the cap shall not exceed 25 lbs. and 75 in-lbs., respectively. The necessary force
to be applied to the rocker arm such that the cap becomes unlocked shall not exceed 6 lbs.
4.6.3 Fluid Leakage. The cap shall be connected to a test flange and test fluid
pressures from + 1 to +5 psi in l-psi increments, and from 10 to 60 psi in 10-psi increments
shall be applied to the cap through the flange. Each test pressure shall be maintained for
at least 1 minute. There shall be no evidence of leakage.
4.6.4 Air Leakage. This test procedure is similar to that of the Fluid Leakage Test,
except air shall be substituted for the test fluid. There shall be no evidence of leakage,
except at the seal. Seal leakage at pressures from + 1 to +5 psi shall not exceed 10
milliliters of free air per minute. At pressures from 10 to 60 psi, the leakage shall not
exceed 50 milliliters of free air per minute.
4.6.5 Fuel Resistance And Extreme Temperature. The fuel resistance and extreme
temperature tests shall be conducted in accordance with Table II.
4.6.6 Accelerated Corrosion. The
assembly shall be immersed in a solution of 2 1/2
percent (by weight) sodium chloride in
distilled water. After immersion, the solution shall
be drained, and the assembly shall
be placed in an air oven and maintained at a
temperature of 130 + 5°F for a period of
at least 1 hour.
This entire procedure shall be
8
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business