MIL-DTL-11891 Track Shoe Sets, Track Shoe Assemblies, Track Shoe Pads And Track Shoe Bushings, Vehicular: ElastomerizedThis specification identifies the requirements for qualification and production control of track systems supporting U.S. Military Tracked Vehicles. This specification is intended primarily for the qualification of elastomeric compounds used in the fabrication of track and track components and to ensure that the quality and performance established at qualification is maintained throughout production. The contractor is held fully responsible for the entire assembly/component including all non-elastomeric components and fasteners.

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MIL-DTL-11891G(AT)

4.7.2.10 Adhesion. This test shall be performed to the requirements of 3.3.4.7. During

production, one sample per shift shall be taken on vulcanized rubber.

4.7.2.11 Ozone resistance. This test shall be performed at the rate of one sample per

month in accordance with the requirements of 3.3.4.8 or 3.3.4.9.

4.7.2.12 Brittleness point of flexible polymers. This test shall be performed to the

requirements of 3.3.4.10. During production, one sample shall be taken monthly from

unvulcanized final mixed compounds.

4.7.2.13 GC mass spec. This test shall be performed to the requirements of 3.3.4.11.

During production, samples shall be taken as required by the Government.

4.7.2.14 Blowout test. This test shall be performed to the requirements of 3.3.4.12.

Fifteen (15) track block samples of each compound for each configuration being submitted for

qualification shall be required. Up to twelve (12) track block samples may be required by the

Government during a production contract for the T107 track systems.

5. PACKAGING

5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified

in the contract or order (see 6.2). When actual packaging of materiel is to be performed by DoD

personnel, these personnel need to contact the responsible packaging activity to ascertain requisite

packaging requirements. Packaging requirements are maintained by the Inventory Control Point's

packaging activity within the Military Department or Defense Agency, or within the Military

Department's System Command. Packaging data retrieval is available from the managing Military

Department's or Defense Agency's automated packaging files, CD-ROM products, or by

contacting the responsible packaging activity.

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 elastomerized track shoe assemblies, track shoe bushings, and

track shoe pads covered by this specification and track shoe sets assembled therefrom are

intended for use in track systems on tracked military vehicles. These track shoes are military

unique because they are used on tracked military vehicles and have a specific formulation which

does not have a commercial application.