MIL-PRF-27260D
TABLE II. Requirements cross-reference matrix.
Requirement
Verification
Requirement
Verification
3.3
4.7.3.1 4.7.3.2
3.8.1
4.7.4 4.7.4.1
3.4
4.6
3.8.2
4.7.4.1
3.5
4.6
3.8.3
4.7.1.2
3.5.1
4.6
3.8.4
4.7.1.2.1
3.5.2
4.6, 4.7.1.3
3.8.5
4.7.1.2.1
3.5.3
4.6
3.8.6
4.7.1.3
3.6
4.6
3.9
4.7.3.1 4.7.3.8
3.6.1
4.6
3.10
4.7.5
3.6.2
4.6
3.11
4.6
3.6.3
4.6
3.12
4.6
3.6.4
4.6
3.13
4.6
3.7
4.7.1.1
3.14
4.6
4.6
Visual examination.
Unless otherwise specified, each tie down assembly shall be examined for compliance as shown
in Table II.
4.7
Methods of inspection.
4.7.1 Sample configuration.
Unless otherwise specified, tests shall be performed with the tie down working length adjusted to
4 feet ± 3 inches.
4.7.1.1 Operations.
The tests shall be performed in conjunction with the adjusting and tensioning mechanism (see
4.7.1.2) and release mechanism (see 4.7.1.3) tests as specified in 3.7.
4.7.1.2 Tensioning test.
With the tie down connected between two fixed points 18.0 feet apart, the adjusting and
tensioning mechanism shall be operated and examined for compliance with 3.8.3 and 3.8.4.
There shall be no inadvertent disengagement of the fixed hook assembly during tie down
operations.
4.7.1.2.1 Tensioning mechanism strength.
The tensioning mechanism shall be subjected to a minimum applied force of 300 pounds through
the tensioning mechanism. The tensioning mechanism shall be operated and examined for
compliance with 3.8.5. There shall be no permanent deformation or malfunctioning of the
mechanism.
4.7.1.3 Release mechanism test.
The tie down shall be assembled in a testing machine and the release mechanism locked. A
minimum load of 750 pounds shall be applied and the release mechanism shall operate by the
application of not more than 60 pounds of force, while the tie down is sustaining the applied load.
The slack in the strap produced by operation of the release mechanism shall allow removal of the
attachment hooks. The release mechanism shall operate as specified in 3.8.6.
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