ARMY MIL-M-48640 (1)-1991 MUZZLE BORESIGHT DEVICE 9364909 (M27 FOR 120MM GUN TUBE)《9364909(M27型120MM火炮管)枪口视轴装置》.pdf

1、MIL-M-48b40 (1) 12 99999Ob 0478590 8 = MIL-M-48 64 O (AR) AMENDMENT 1 29 April 1991 MILITARY SPECIFICATION MUZZLE BORESIGHT DEVICE: 9364909 (M27 FOR 120MM GUN TUBE) This amendment forms a part of MIL-M-48640(AR), dated 31 January 1986, and is approved for use by the U.S. Army Armament , Munitions, a

2、nd Chemical Command , and is available for use by all Departments and Agencies of the Department of Defense, PAGE 3 3.5.1, delete in its entirety and substitute: “3.5.1 Collimation. Collimation error, defined as the angular difference in the alignment of the optical axis with the mechanical axis, sh

3、all not exceed 20 seconds when the Muzzle Boresight Device is mounted in the test fixture.11 3.5.3, delete in its entirety and substitute: 113.5.3 Collimation repeatabilitv. The collimation All measurements repeatability error shall not exceed 15 seconds. must meet the collimation requirements of 3,

4、5.1.11 - PAGE 11 4.7.4.1, delete last sentence in its entire.ty and substitute: llCollimation is met when collimation error is within 20 seconds as required by paragraph 3.5.1, when rotated through 360“, minimum of four readings 90“ apart“. 4.7.4.3.2, delete fourth sentence in its entirety and subst

5、itute: llRepeatability within 15 seconds is acceptable.11 custodian Army-AR Preparing Activity: (Project 1240-AB15) Army-AR AMSC N/A 1 OF 1 FSC 1240 Distribution Statement A. Approved for public release; distribution is unlimited,. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-