§ 25.625 - Fitting factors.  


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  • § 25.625 Fitting factors.

    For each fitting (a part or terminal used to join one structural member to another), the following apply:

    (a) For each fitting whose strength is not proven by limit and ultimate load tests in which actual stress conditions are simulated in the fitting and surrounding structures, a fitting factor of at least 1.15 must be applied to each part of -

    (1) The fitting;

    (2) The means of attachment; and

    (3) The bearing on the joined members.

    (b) No fitting factor need be used -

    (1) For joints made under approved practices and based on comprehensive test data (such as continuous joints in metal plating, welded joints, and scarf joints in wood); or

    (2) With respect to any bearing surface for which a larger special factor is used.

    (c) For each integral fitting, the part must be treated as a fitting up to the point at which the section properties become typical of the member.

    (d) For each seat, berth, safety belt, and harness, the fitting factor specified in § 25.785(f)(3) applies.

    [Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-23, 35 FR 5674, Apr. 8, 1970; Amdt. 25-72, 55 FR 29776, July 20, 1990]