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|  MIL-S-3475
26 APRIL 1951
SUPERSEDING
Specification FXS-719
12 July 1948
MILITARY
SPECIFICATION
SIGHT,
M6
This specification was approved by the Departments of the Army, the Navy, and
the Air Force for use Of Procurement services Of the respective Departments.
2.2 Drawings. -- The following drawing,
1. SCOPE
and all drawings referenced thereon, on the
1.1 This specification covers one type of
issue in effect on date of invitation for bids,
sight known as Sight M6, for use on 81-mm.
forms a part of this specification:
Mortars.
U. S. ARMY ORDNANCE CORPS DRAWING
2.
APPLICABLE
SPECIFICATIONS
91-205-l-Sight M6.
AND
DRAWINGS
(Copies of drawings should be obtained from the
procuring agency or as directed by that agency.
2.1 Specifications.-The following specifi-
Both the title and the identifying number should be
cations and specifications referenced on draw-
stipulated when requesting copies.)
ings in 2.2, of the issue in effect on date of
invitation for bids, form a part of this speci-
3. REQUIREMENTS
fication:
3.1 General. -- General requirements and
associated tests common to all fire control
U. S. ARMY SPECIFiCATions
instruments as contained in Specifications
Fire - Control;
51-7 --Instruments,
51-7 and 51-70-2 shall be mandatory in so
General Specification Governing the
far as they are applicable.
Manufacture, and Inspection of.
51-70-2-Optical Components for Fire-
3.2 Materials.-Materials shall be in ac-
Control Instruments; General Specifi-
cordance with the drawings, general specifi-
cation Governing the Manufacture,
cations and material specifications forming
Assembly, and Inspection of.
part of this specification.
(Army.--Copies of specifications should be ob-
3.3 Accuracy.-With the sight mounted
tained from the procuring agency or as directed by
in a suitable testing fixture: so that the verti-
that agency. Both the title and identifying number
or symbol should be stipulated when requesting
cal axis of the bracket d dovetail is inclined --
copies.)
to the rear 15 degrees, the fiat back surface
of the dovetail is in a vertical plane, the
(Navy.-Copies of Military specifications may be
obtained upon application to the Bureau of Supplies
elevation level bubble centered, and the de-
and Accounts, Navy Department, Washington 25,
flection scale and micrometer set at zero,
D. C., except that activities of the Armed Forces
the following requirements shall be met:
should make application to the Commanding Officer,
Naval Supply Depot, Scotia 2, N. Y. Both the title
3.3.1 Index. -- The elevation index shall
and identifying number or symbol should be stipu-
coincide with the 60 degree graduaton and
lated when requesting copies.)
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