Downloaded from https://www.everyspec.com MIL-s’rD-1312B d. Reduction in the time and effort required for the development of procurement specifications for fasteners by having a series of standard tests available. e. Elimination of duplication in the development of test methods and documents by individual fastener producers, Government contractor, and military activities. f. Elimination of duplication of effort in research and evaluation due to lack of unified standard teat methods.
When test methods are not standard, results cannot be correlated; therefore, producers, prime contractors, and military activities will not accept each other’a results and will duplicate research, development, and evaluation work. g. For logistics simplification, fastener attributes must be reduced to a common denominator so that variation .in type can be compared. Data and the presentation thereof, by means of this standard, will be provided in such form that various types and variation in types of fastenera may be compared to determine their degree of interchangeability, substitutability,and replaceability. ,h.
Time and effort required to reach agreement in regard to specific engineering changea will be reduced by providing unified standard tests for use in evaluating new fasteners. i. This standard will provide a means for establishing guidelines for evaluating fastener test data and engineering techniques. j. Industry and Government design personnel will become thoroughly indoctrinated in the uae of a single standard prescribing unified standard test methods.
ACKNOWLEDGEMENT This atandard was prepared by the Fastener Testing Development Group (FTDG), consisting of representatives of Government agenciea, engineering societies, trade associations, independent testing laboratories, the using industry, and the fastener producing industries. With the increased implementation of the International System of Units (S1) or metric system in military apecificationa and standards, the Department of Defense (DoD) haa approved its usage in this standard. Therefore, this issue, prepared under DoD project Number 53Gp-0142-20 by the FTDG, includes test methods in the S1 and inch-pound (I-P) units. . iv L