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| MIL-L-82653A(OS)
4.4.3.1 Liner test specimen. The propellant from the propellant mix used to cast the test specimens shall
meet the propellant mechanical properties specified in the applicable propellant specification before the liner
bond test is completed. If the propellant does not meet the mechanical properties specified in the applicable
propellant specification, all bond testing completed with that propellant mix shall be deemed invalid.
a. Sandblast and degrease the inside of the gripping sleeve and the anvil disc using the same solvent
used on the motor tubes.
b. Coat the inside of the gripping sleeve with a thin layer of liner. Coat the exposed side of the insulator
disc with liner, so that, as a minimum, the insulator disc is fully covered by liner.
c. Cure the liner at 170 5F for 14 to 18 hours.
d. Assemble the test specimen as shown on figure 4.7.2-1 of CPIA Publication No. 21.
e. Cast propellant into the steel tube and cure with the propellant mix as specified in the applicable
propellant specification.
5. PACKAGING
(This section is not applicable to this specification.)
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful but is not
mandatory.)
6.1 Intended use. The liners described herein are used between the case or tube wall and the propellant
of various cartridge devices and rocket motors, specifically:
Type I
Used in the CCU-22/A Impulse Cartridge, CCU-22/A/A Impulse Cartridge, and the
CKU-7/A Rocket Catapult.
Type II
Used in the CKU-5/A Rocket Catapult and the CKU-5/A/A Rocket Catapult.
Type III
Used in the CKU-5B/A Rocket Catapult.
6.2 Acquisition requirements. Acquisition documents must specify the following:
a. Title, number, and date of this specification.
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