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|  MIL-R-23016(Wep)
3.1.25.3
Rotary Switches:
3.1.25.3.1
Indexing Mechanism:
Rotary switches shall have a positive mechanical index, locating
each contact position. The indexing mechanism shall be designed
to minimize the possibility of the movable element coming to
rest between contact positions. This requirement does not apply
when the switch is positioned by means other than manual operation.
3.1.25.3.2
Materials:
Materials used in the construction of rotary switches shall be
as follow:
(a)
Laminated plastics shall be type PBE in accordance with
Specification MIL-P-3115, or better.
(b)
Molded plastics shall be type MFE, MME, or MAG in accordance
with Specification MIL-M-14, or better.
(c)
Ceramic parts shall be grade L-4, type A, or B in accordance
with Specification JAN-I-10, or better. (Type A possesses
greater resistance to thermal shock than type B.)
Contacts and contractors shall be silver alloy or silver
(d)
plated, and shall be self-cleaning.
(e)
Shafts shall be aluminum or corrosion-resistant material.
(f)
Metal parts other than contacts and shafts shall be made
of corrosion-resistant material, except that bushing and
bearing assemblies may be brass suitably treated to prevent
corrosion.
3.1.25.3.3
Mounting:
Rotary switches shall be designed for mounting to a panel by
means of a single bushing concentric with the shaft and threaded
3/8-32 MEF2A.
38
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