1、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-133B7 12 777770b 0295233 O -1 Sel Genemle= Unless specified othepwfse, the requirements com mo tire contra1 instruments as opeciffed fn Spec%- fication 52-7 and Specification 51-70-2 shall be mand
2、atory insofar as they are appl%sab%a. d02 Materiaha !daterial shall Se in aecordancs with the appli- csblearaw%ngs and specifications forming a part of this speci- f iiation. 3*3 Vibrati,m.= After being subjected to the vibration test of Specificatian 51-70-2, the instnment shall show no evidence of
3、 dirt when viewed through the objective* shall be th3 first test performed an the instrumente 3*4 Posftian of Reb%cles- With the axis of the mount assembly 64675957 horizontal, as shown on drawing B7693787, the image sf the reticle shall ave the spaces that form a cross on the reticla alined within
4、5 degrees in both the norizontal and vert%ca% po aitions. Ihe vibration test 3.5 Ima e Quall%- The image of the mticle shall be clear un + orm without any break QP irregularitieso SOB Reticle Illumfnation*- With the -lluminatsr in place and energized, the reticle irnags shall appear clearly defined
5、when vfewed against skylrlght OF a backgsound wlth a SPightness of SOO foot eandfes 3,7 Papallma- BaPalPax betwen the reticle image and a dis- taat tapzit (greater than 100 yards) shall not exceed 3.2 mil. Ze8 Ad justrnent Tae axfniuth and elevation ad justanent screws shall be set to the appmximate
6、 center of theia, mspective movements when the fnstrment is bore-sighted* aeQ Abrasion Resistanceem Them shall1 be no scmtches largar than size 40; the eoiibiried length 02 all seratchas size 40 and smallep sha not mesed 3 inches in the rubbed ama sf R rg- flector surface which has been subjected to
7、 the abrasion test arrpeciiied fn 4.4. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.11 Temperature .- .Temperature requirements specified in Specification 51-7 for Type II instruments shall apply. 3.12 Workmanshh,- Workmnship shall be in accorda
8、nce with Specification 51-7. 4. SAMPLING, I INSPECTION, AND TEST PROCEDURES 4.1 be Inspected for conformance with this specification and with psci- fication 51-7 and Specification 51-70-2. otherwise, standard ambient tests shall be performed at a temperature of 6OoF to 90F, at a barcnietrlc pressure
9、 of 28 to 32 inches of mercury, and a relative humidity not greater than 80 percent* General.- Unless specified otherwise, each si ht shall 8 Unless specified -. 4.2 Place of Inspection,- Unless specified otherwise by the con- tracting officer, inspection and tests ahall be corrducted at of manufact
10、ure. i;he pIace 4,3 Vibration Teste- The vibration test 8Pcified in Specifi- cation 51-70-2 shall apply. 4.4 Abrasion Resistance Test.- The abrasion resistance test apecified - in Specification JAN-F-675 shal apply, 4#5 Weatherproofing Testc- OW reflox sight out of every ten shall be subjected to th
11、e artificial Pain tes6 suecifisd in Specification 51-7. minator positioned for daylight fllumination. 4r6 Temperature test- The temperature test oantaned in Specification 51-7 for Type II instruments shall apply. 5, PmPARA!lTON FOR DELIVERY 5.1 Packaging, Packfag and Marking, - Packaging packing and
12、 marking shall be in accordance with Specification MIL-P-11946. 60 NOTES 6l aid for dfrect fire against aircrafta 6*2 Ordering data.- Invitation for bLda and contracts ehould specify the bitle, number, and date of this specification. This test shall be applied wiGh the illu- Intended use.= Reflex Si
13、ght M18 is used as a tracking - _. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-13387 12 9977706 0275235 q NOTICE: This specffication, together with specifica.tions and drawings pertaining to it and bearing a “NOTICE“ of similar restrictions
14、, is intended for use only ln connection with pro- curement by the United States Government; and shall not be re- produced either wholly OF in part except when authorized in connection with Government procurement, nor be used for any other purpose except when specfically authorized by the Chief of Ordnance. CUSTDIAN : Army4rdnance Corps Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
