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MIL-M-45945A
3.3.13  Receiver  assembly  (11686308). The slideways of the
receiver assembly shall be smooth and free of burrs. The rear
mounting pin (7792975) shall be retained on the receiver assembly
by the staked pins (7792971). All rivets parts shall be tight,
undamaged and without relative movement.
3.3.13.1  Dust  seal  sleeve  (11699787). The dust seal sleeve
shall fit snugly on the receiver by the resilient action of the
rubber.
3.3.14 Sear and safety housing assembly (11699773). The
sear and safety housing assembly shall be retained on the
receiver assembly (11686308) by the retaining pin (7269205) and
shall disassemble from the receiver assembly without the use of
tools. The retaining pin shall be locked in place by the lock
spring (11699785). Use of a tool will be permitted, when
required to assist in disassembly of the spring lock.
(11699777).  The  safety  shall  move  manually
3.3.14.1  Safety
between the safe and fire positions, and shall remain in the
position set under spring action until reset manually. The
firing mechanism shall operate when the safety is positioned at
the letter "F" and shall not operate when the safety is
positioned at the letter "S".
3.3.14.2  Sear  (7269209). The sear shall be capable of full
engagement with the sear engagement notch on the operating rod
assembly (9362510) and capable of holding the operating rod
assembly in a cocked position. When the safety (11699777) is in
the firing position and the trigger assembly (11699758) is
pulled, the sear shall disengage from the sear engagement notch
(primary and secondary, each individually) on the operating rod
assembly allowing the operating rod assembly to move forward
under spring action. When the trigger assembly (11699758) is
released, the sear shall return to the engaging position by
spring action of the sear plunger (7269207) .
3.3.14.3  Sear  actuator  assembly  (11699780). The sear
actuator assembly shall readily assemble to and disassemble from
the sear link rod assembly (11699790) without the use of tools
and when assembled shall be securely retained on the sear link
rod assembly by action of the sear link spring (11699792) .
3.3.14.4 Sear link rod assembly and sear link rod connector
(11699790  and  11699789). The sear link rod connector shall be
attached to the trigger assembly.The sear link rod assembly and
the sear link rod connector shall be lockwired together as
specified on the applicable drawing.
11

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