MIL-L-80061B
(Technical society and technical association specifications and standards
are generally available for reference from libraries. They are also distri-
buted among technical groups and using Federal agencies.)
2.3 Order of precedence. In the event of a conflict between the test of
this specification and reference cited herein, the test of this specification
shall take precedence.
REQUIREMENTS
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3.1 First article. When specified (see 6.2.1) , the contractor shall fur-
nish a sample unit for first article inspection and approval (see 4.2 and 6.3).
3.2 Design. The lathe shall be new and one of the manufacturer's current
models capable of conforming to the accuracy requirements for a bench lathe
as specified herein. The lathe shall be capable of performing turning, boring,
facing, and threading operations within the capacities of the size specified.
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 accessible for adjusment and repair.
3.2.1 Measurement Systems. Unless otherwise specified, either the U.S.
Customary System of Units (US) or the International System of Units (SI) may
be used in the design and construction of the machine. When only one system
of measurements is acceptable, the particular system required shall be as
specified (see 6.2. 1). In this specification, all measurements, dimensions,
sizes and capacities are given in the U.S. Customary System of Units (US).
These measurements may be converted to the International System of Units (SI)
through the use of the conversion factors and methods specified in ANSI/IEEE 268.
3.2.1.1 Measuring and indicating device graduations. When specified (see
6.2.1), measuring and indicating devices such as scales, carriage stops, dial
indicators, pressure gages, temperature indicators and all other similar
devices shall be graduated in the specified system (US or SI) of measurements l
Regardless of the measurement system used, all measuring and indicating devices
on the machine shall be graduated in the same system
3.2.1.2 Dual graduations. When specified (see 6.2.1) measuring and indicat-
ing devices shall be graduated in both the US and the ST System of Measurements.
When a dual US and SI System is furnished, feed dials shall have independent
zero adjustments and shall be calibrated in such a manner that the last dial
graduation progresses into and is continuous with the first dial graduation
as the dial is rotated through the zero position.
3.2.2 Reclaimed materials. The machine may contain reclaimed materials
provided such materials will not jeopardize the machine's intended use and
performance. The reclaimed materials shall have been reprocessed, remanu-
factured or recycled in a manner which will restore them to the same chemical
composition and physical properties as the materials originally selected for
use on the machine.
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