|QUANTITY||Check annual requirements and advise supplier.||With an annual contact the supplier can minimize: tooling, setup costs and material costs. Greater flexible for the most economical method of manufacturing is allowed.|
|OVER AND UNDER RUNS||Ordering exact qualities increases costs.||Allowance must be made for overage in production which must be prorated in the quoted price.|
|DELIVERY||Allow sufficient lead time for normal Planning. Provide your supplier with the best forecast .||Quick deliveries involve premium material and labor costs. A longer / better forecast permits more economical manufacturing runs.|
|PACKAGING||If special packaging, labeling or bar coding is required, advise the supplier of this when the request for pricing is made.||Unusual packaging requirements are expensive due to special material and labor. if advised in advance , a supplier may be able to provide alternative, less expansive packaging.|
|MATERIAL||Design and application permitting , Specify standard sizes of Free machining grades.||Standard sizes cost less and are more readily available. free machining material (Brass) yields greater production, improved finish and closer tolerance.|
|TOLERANCES||Specify mo closer tolerance then absolutely functionally necessary.||If required, suppliers of precision machined products can and will make the parts with close tolerance. However, higher costs can be excepted the closer the tolerance requirements.|
|INTERNAL DIAMETERS||Hole diameters should be specified to the maximum allowable limits.||Suppliers of precision machined products stock standard drills and reamers. special internal diameters can be produced but with expansive special tooling.|
|THREADS||Specify standard threads as far as possible like UNC , UNF, OSO Metric, BSP (G) NPT, NPTF, BSW, BA etc. Also for internal threads keep short lengths if possible.||Special Threads require special tools and gauges. Closer
fits may require additional operations.
Full threads are harder to tap.
|GAUGES AND GAUGING EQUIPMENT||Wherever possible part design should avoid the need for special gauges.||Special gauges. and gauging equipment add to part cost. Customers may supply special gauges to eliminate additional Costs.|
|FINISH||Clearly specify surface finish no closer then necessary to meet function requirements||Finer surface finish may require special tooling, slower cycle time or additional second operations and special handling and packaging methods.|
|QUALITY||Be as detailed as possible with the quality requirements. Specify which characteristics are of greatest importance to products performance.||This will allow the supplier to focus on what is important and to follow parallel or compatible quality procedures.|