![]() Australian Standards, standards per Australian industry.Īpproved product supplier, approved vendor, approved-product-supplier list, approved-vendor list Standard aerospace hardware sometimes has the AS- prefix in the catalog numbers. ![]() Aerospace Standards, technical standards maintained by SAE International and widely used in the aerospace manufacturing industries. For example, in an assembly with a bolted joint using four bolts, the PL quantity column will say "4" for the bolt PN, "4" for the nut PN, and "AR" for the liquid threadlocker that will be applied.Īerospace Standards Australian Standardsġ. The intelligence behind defining AQLs is in figuring out how much error is tolerable given the costs that would be incurred by any efforts to further reduce its incidence.Īn abbreviation used in parts lists ( PLs, LMs, BoMs) in the quantity-per-assembly field when a discrete count is not applicable. It is trivial to say that no one wants any error, and that everyone wants uniform perfection but in the real world, it almost never happens. The threshold of defectiveness that is allowable in a group of parts. (See also MS- and NAS.)Īnd the many standards that it issues, for example, ANSI Z87.1. DOD and military to do less of it (as explained at United States Military Standard > Origins and evolution), although many MIL standards are still current. Today industry and ISO also do a lot of this standardization specification, freeing the U.S. Army and Navy were leading the way on product standardization for logistics improvement, yielding the United States Military Standards system. Came from the era of circa 1890s-1945, when the U.S. Standards in materials science and engineering maintained by SAE International and widely used in the aerospace manufacturing industries.Ī prefix for standard hardware (catalog hardware) ID numbers. The SAE steel grade system was formerly a joint AISI-SAE system. ![]() The AISI acronym is commonly seen as a prefix to steel grades, for example, "AISI 4140". Example would be the top of a coffee table to the shag of the carpet, not where the bottom of the tables feet dig in. Title block for D-, E-, F-, H-, J-, and K-size drawings.Commonly used when measuring the corners of a hex drive, such as a hex nut.Ĭommonly used when measuring the flat surfaces of a hex drive, such as a hex nut.Ī dimension that establishes a distance away from the finished floor. Title block for A-, B-, C-, and G-size drawings RECORD OF ![]() ![]() Certain information common to all drawings in the basic title block is optional in the continuation sheet title block. In a multiple-sheet drawing, either the basic title block or a "continuation sheet title block" format may be used for second and subsequent sheets provided all sheets are of the same size. (D-size) drawings and is optional for 28-in. The vertical title block format must be used for all 22-in. There are three sizes of title blocks: a block used for A-, B-, C-, and G-size drawings, a slightly larger block for D-, E-, F-, H-, J-, and K-size drawings, and a Generally, the title block is placed in the lower right-hand corner of the drawing sheet, regardless of the size of the drawing (except for vertical title block). The primary purpose of a drawing title block is to identify a drawing. The Title Block Description includes the terms necessary for describing Title blocks of technical drawings, particularely NAVY ships drawings. Technical Drawings - Title Block Technical Drawings: Title Block Description ![]()
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