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Interpretation ID: nht73-2.32

DATE: 11/06/73

FROM: AUTHOR UNAVAILABLE; W. R. Fiste; NHTSA

TO: The Bendix Corporation

TITLE: FMVSS INTERPRETATION

TEXT: This replies to your letter of October 17, 1973.

We have studied the comments contained in your letter carefully, and based on your extensive experience, have no reason to believe that your use of tubing made of solid neoprene rubber for the application in question constitutes a safety hazard.

Since there is limited movement involved, the use of "tubing" rather than "hose" is appropriate. The Bureau has not, as yet, established standards other than the general requirements of paragraph 393.43(a) for brake tubing used in applications which do not flex. Use of coiled nylon brake tubing for connections between towed and towing vehicles is permitted if the tubing meets the requirements for Type 3B nylon tubing set forth in SAE Standard J844.c.

We appreciate your interest in this safety matter and trust the above is responsive to your inquiry.