scope:

This specification covers mechanical and electrical speedometers and tachometers, flexible shaft assemblies, flexible shaft assembly cores, adapters, and transmitters used with these instruments.

The speedometers, tachometers, shaft assemblies, cores, adapters, and transmitters shall be of the following types, groups, and classes as specified (see 6.2).

Type I - Mechanical Group A - Speedometer, fixed mounting. Group B - Tachometer, fixed mounting. Class 1 - Shaft assembly, flexible, metallic. Class 4 - Core, flexible shaft assembly. Class 5 - Adapter, speedometer, and tachometer, 90-degree drive. Class 6 - (see 6.3). Class 7 - Adapter, speedometer, and tachometer, straight drive. Class 8 - Adapter, coupling/bulkhead, speedometer and tachometer drive. Class 9 - Shaft assembly, flexible, plastic.

Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Tank-Automotive Command, ATTN: AMSTA-GDS, Warren, MI 48397-5000, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document, or by letter.

Type II - Electrical Group C - Speedometer, fixed mounting. Group D - Tachometer, fixed mounting. Class 2 - Transmitter, electrical, transmission or engine mounted. Class 3 - Transmitter, electrical, distributor mounted.

intended Use: