MIL-G-23823E
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 79
- Electrical Standard for Industrial Machinery.
(DOD adopted)
(Application for copies should be addressed to the National Fire Protection
association, Batterymarch Park, Quincy, MA 02269-9101.)
NATIONAL FLUID POWER ASSOCIATION (NFPA)
NFPA/JIC T2.24.1- Hydraulic Fluid Power - Systems Standard for Stationary
Industrial Machinery.
(Application for copies should be addressed to the National Fluid Power
Association, 3333 N. Mayfair Road, Milwaukee, WI 53222)
(Non-Government standards and other publications are normally available from
the organizations that prepare or distribute the documents. These documents
also may be available in or through libraries or other informational
services.)
2.3 Order of precedence. In the event of a conflict between the text of
this document and the references cited herein, the text of this document takes
precedence. Nothing in this document, however, supersedes applicable laws and
regulations unless a specific exemption has been obtained.
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REQUIREMENTS
3.1 First article. When specified (see 6.2), one complete grinding machine
shall be subjected to first article inspection (see 6.4) in accordance with
4.4.
3.2 Design. The grinding machine shall be new (not a prototype) and one of
the
manufacturer's current production models capable of operations in
accordance with the requirements herein. The machine shall include all
components,
parts,
and
features necessary
to meet the performance
requirements specified herein. All parts subject to wear,
breakage, or
distortion shall be readily accessible for adjustment, replacement, or repair.
3.2.1 Measuring and indicating device calibrations. Measuring and indicat-
ing devices shall be graduated in inch-pound (see 6.5.1), metric (see 6.5.2),
or dual (inch-pound and metric) units as specified by the procuring activity
(see 6.2). Regardless of the measurement system used, all measuring and
indicating devices on the machine shall be graduated in the same system.
3.2.1.1 Dials. All dials used to indicate machine axes position or tool
movement shall be graduated in increments not larger than 0.0001 inch for the
inch system, not larger than 0.003 mm for the metric system, or not larger
than 0.0002 inch and 0.005 mm for the dual system of measurements. Dial and
handwheel circumferences shall be permanently and legibly engraved or etched
on a non-glare background with graduations that can be read from the
All feed dials shall have independent zero
operator's normal position.
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