MIL-DTL-11891G(AT)
adjustments are required and the extent of any adjustments. Any and all pertinent and relevant
data, historical or otherwise, shall be used as supporting rational for the establishment of these
values. This final plan shall be reviewed by the Government and signed by the QAR and an
authorized contractor representative. This plan will then be put in place at the contractor's
plant/facilities and/or subcontractor's plant/facilities and utilized for the production of all
subsequent parts/assemblies as described in the plan.
3.4.2 Replaceable pad track system qualification. Contractors submitting compounds for
qualification to produce style B, replaceable pad track systems are responsible for the entire track
system to include all metal components and fasteners. All requirements of 3.2 must be met prior
to qualification approval and the documented results provided to the Government.
3.4.2.1 Endurance test requirements. Full track assemblies being submitted for
qualification must contain a qualified pin/bushing assembly. A report is required containing the
information required in 3.3.2 and 3.4.1 as demonstration of bushing qualification. In addition, a
report containing the results of 3.3.3 and 3.3.4 of this specification is also required as applicable
to replaceable pad track systems. Track system qualification will be conducted in accordance
with the requirements established in Appendix B. A minimum of 5000 miles demonstrated track
durability at 20 % replacement must be achieved for a track system to be considered qualified and
a contractor to be listed on the QPL.
3.4.2.2 Track ground pad qualification. Contractors submitting compounds for pads only
on style B track will provide the inspection results in accordance with the requirements of 3.2 and
provide a report containing the results of applicable requirements of 3.3.4. Excluding the T157I
pad, on-vehicle qualification tests will be conducted in accordance with Appendix B as applicable
to ground pads only. A minimum of 1000 miles demonstrated track pad durability at 40%
replacement must be achieved for a pad compound/contractor to be considered for listing on the
QPL for pads. For the T157I pad, on-vehicle qualification tests will be conducted in accordance
with Appendix D. A minimum of 800 miles demonstrated track pad durability at 40%
replacement must be achieved for a pad compound/contractor to be considered for listing on the
QPL for pads.
3.4.3 Integral pad track system qualification. Contractors submitting compounds for
qualification to produce style A, integral pad track systems are responsible for the entire track
system to include all metal components and fasteners. All requirements of 3.2 must be met prior
to qualification approval and the documented results provided to the Government.
3.4.3.1 Endurance test requirements. Full track assemblies being submitted for
qualification must contain a qualified pin/bushing assembly. A report containing the information
required in 3.3.2 and 3.4.1 is required as demonstration of bushing qualification. In addition, a
report on the results of 3.3.3 and 3.3.4 of this specification is also required as applicable for
integral pad track systems. Track system qualification will be conducted in accordance with the
16
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business