help w/ level III drawings
help w/ level III drawings
(OP)
i am developing level III drawings that contain both mil spec and metric hardware. i can't find any info on mil spec metric hardware so i've been told to use ISO hardware specs. is it acceptable to use both englich mil spec and ISO spec hardware nomenclature on this type of drawing? has anyone has been down this road before? thanks for your time.
Sr. Pro/E Mechnaical Designer





RE: help w/ level III drawings
--Scott
http://wertel.eng.pro
RE: help w/ level III drawings
RE: help w/ level III drawings
Sr. Pro/E Mechnaical Designer
RE: help w/ level III drawings
(MIL-STD-410D)
Chris
SolidWorks/PDMWorks 08 3.1
AutoCAD 08
ctopher's home (updated Aug 5, 2008)
ctopher's blog
SolidWorks Legion
RE: help w/ level III drawings
RE: help w/ level III drawings
Sr. Pro/E Mechnaical Designer
RE: help w/ level III drawings
The point as I always understood it is that another person/organization, using the description provided, can find hardware that is fully equivalent.
Then my real military drawing was in the UK to their standards but we would routinely call out hardware from a range of standards including Mil Std, NAS, BS, ISO, EN... on one drawing.
KENAT,
Have you reminded yourself of FAQ731-376: Eng-Tips.com Forum Policies recently, or taken a look at posting policies: http://eng-tips.com/market.cfm?
RE: help w/ level III drawings
Sr. Pro/E Mechnaical Designer
RE: help w/ level III drawings
There are some military standards for metric fasteners but to find a source with reasonable minimum buys and prices may be problematic.
There does exist an unofficial but widely-recognized part numbering that clearly calls out the size, the material type, and the governing spec.
If there was an M4X12 socket head cap screw defined in ISO9138 (this is a purely fictional number I am using just for purpose of explanation) and if the standard defined two grades of stainless steel, say A2 for a low strength grade and A4 for a high strength grade then the part number, then one valid part number is M4X12ISO9138-A4. This part number nails everything down completely within the confines of the spec. Vendors will sell screws to you using this part number and will provide you with certs to the spec as well. This has been my experience. If a vendor won't sell screws to you using this method then I suggest finding a new vendor.
Tunalover
Tunalover