1、MIL-U-70592 12 9799906 0355655 7 m MILITARY SPECIFICATION MUZZLE BORESIGHT DEVICE 11785384 (M26 FOR M105&1 GUN TUBE) MIL-BI-7 0542 (AR) 25 February 1985 This specification is approved for use by the U.S. Army Armament, Nunitions and Chemical Command (AMCCON) and is available for use by all Departmen
2、ts and Agencies of the Department of Defense. 1. SCOPE 1,l Scope. This specification establishes the requirements and quality assurance provisions for the cased series of the Nuzzle.Boresight Device 11785384 (M26 for M105MM Gun Tube), herein referred to as MBD. I 2. APPLICABLE DOCUMENTS 2.1 Issues o
3、f documents. The following documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-F-13926 . - Fire Control Material, General Specifications MIL-P-14232 Parts, Equipment, a
4、nd Tools for Army Naterial, MIL-1-45 607 - Inspection Equipment, Acquisition, Maintenance, Governing the Manufacture and Inspection of Packaging and Packing of and Disposition of STBARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection MIL-STD-1 O9 - Quality Assurance Terms and D
5、efinitions l MIL-STD-810 - by Attributes Environmental Test Kethods i FSC 1240 Beneficial comments (recommendations, additioni, deletions) and any pertinent data rMch may be of use in improving this document should be addressed to: Commander, US brmy Armament Research and Development Center, Atta: A
6、MSUC-QA, Dover, New Jersey 07801-5001 by udng the meIf-addreamed Standardization Document Improvement Proposai (DD Form 1426) appe- it the end of this document or by letter. / .)A THIS DOCUMENT CONTAINS /s PAGES - Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
7、rom IHS-,-,-MIL-M-705L/2 12 m 9999706 0355556 O * MIL-M-70542. (AR) DRAWINGS AMCCOM 11785384 - Muzzle Boresight Device (M26 for 1OSMM 9364322 - Test and Alignment Fixture for M26 MBD Gun Tube). (105MM). Packaging Data Sheet Pl1785384 - Packaging of Muzzle Boresight Device (M26 for 105MM Gun Tube). (
8、Copies of specifications, standardss handbooks, drawings, and publi- cations requTred by manufacturers in connection with specific acquisi- tion functions should be obtained from the contracting activity or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 Fabrication. The MBD shall be ma
9、nufactured 5n accordance with Drawing 31785384 and drawings pertaining thereto and, when assembled, shall meet the requirements of this specification. 3.2 General cpecif icati,on. The provisions of MIL-F-13926 apply. 3.2.1 Ambient conditions. Standard Ambient conditions shall be as follows: a. Tempe
10、rature 73“ 2 18 F b. Relative humidity 50 percent 2 30 percent c. Atmospheric pressure 28.5 + 2.0 - 3.0 in. Hg. 3.3 First artTcle inspection. This specification contains tech- nical provisions for first article inspection. Requirements for the submission of first article samples by the contractor sh
11、all be as spe- cified in the contract. 3.4 CleanUness. a, Defects, There shall be no evidence of moisture, grease3 condensates,.fractures, and adhesive separations on any glass com- ponent when viewing either through the eyepiece or objective end. -2- Provided by IHSNot for ResaleNo reproduction or
12、networking permitted without license from IHS-,-,-MIL-M-705LI2 12 W 7777906 0355657 2 W 1 . MIL-M-70542 (AR) i b. Dirt. When viewing through the eyepiece there shall be no There more than three (3) particles of dirt or foreign material (classed as dirt) appearing within a 50 Mil diameter central fie
13、ld of view. shall be no more than three dirt particles appearing outside the spe- cified field of view. The angular separation between dirt particles shall be at least 15 Mils. Dirt particles smaller than 1/4 reticle dot width shall be ignored regardless of distribution, The size of any particle sha
14、ll not exceed the apparent width 3.5 Performance. 3.5.1 Collimation. Collimation error shall seconds. 3.5.2 Parallax. Maximum allowable parallax seconds . of the reticle dot. not exceed 50 shall not exceed 10 3.5.3 Collimation repeatability. The collimation repeatability error shall not exceed 30 se
15、conds. All measurements must meet the collimation requirements of 3.5.1. - 3.5.4 Transmission measurement. Transmission shall be 60 percent minimum when measured using a photopic filter. 3.5.5. Resolution measurement. The resolution of the system shall not exceed 8 seconds. 3.5.6. Eyepiece focus mea
16、surement. The eyepiece setting shall be - 0.75 - + 0.25 diopters. 3.5.7. Magnification. The requirement for magnification is 7X plus or minus 0.14X. 3.5.8. Field of view, FOV. The FOV shall be 6 degrees minimum. 3.6 Purging. The MBD shall be purged with dry nitrogen for a period of time until it is
17、determined that the dew point is at least -25 degrees F at atmospheric pressure. diately after purging. The unit shall be sealed imme- 3.7 Sealing. Care will be utilized to keep MBD internal atmosphere purged, excess of 0.1 PSI when subjected to an internal pressure of 5 PSIG plus or minus 0.1 PSI f
18、or a period of one hour. atmosphere of the accepted MBD shall contain nitrogen having a dew point at least as low as minus 25F at a pressure of between 0.25 and 0.50 PSIG. The MBD shall show no evidence of leakage in The interior 3.8 Interchangeability verification. All MBDs shall be interchangeable
19、 (see 4.7.6. i). -3- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-il-70542 12 = 9999706 0355658 4 9 MIL-M-70542 (AR) 3.9 Workmanship. 3.9.1 Optical inspection. The MBD shall be viewed with the unaided eye from the objective end against a backg
20、round of approx- imately 300 foot candles. There shall be no cracks, chips or bond separation. end, there shall be no scratches, chips, dirt or coating deterioration which would be a distraction to the observer. When a focused target is viewed through the eyepiece 3.9.2 Mechanical inspection. The me
21、chanical. parts of the unit shall be inspected for broken parts, completeness, workmanship and functionability. The locating block shall be checked for freedom and smoothness of operation. Paint chips or nicks which do not affect the function of the instrument shall be touched up. All burrs and exce
22、ss material shall be removed from castings and forgings. Ali surfaces, including threads, shall be free from burrs and sharp edges. 3.10 Environmental. 3.10.1 Storage temperature. The MBD shall show no evidence of cement separation, glass breakage or other physical failure and shall meet all the req
23、uirements of this specification at standard tem- perature (Plus 15 degrees C to 32 degrees C) after having been exposed and thermally stabilized at temperatures of plus 71 degrees C and minus 62 degrees C. 3.10.2 Operating temperatures. The MBD shall be mechanically operable while thermally stabiliz
24、ed at plus 65 degrees C and minus 40 degrees C. C/hour. The rate of temperature change shall not exceed 10 degrees 3.10.3 Vibration. The cased MBD shall be capable of withstanding vibration when subjected to Test Method 514.2 Procedure X, Curve AV, Equipment: Category G of MIL-STD-810- 3,10.4 Shock,
25、 The MBD shall withstand shock in accordance with Test Method 516.2, Procedure I, Figure 516.2-2, time duration 11 milliseconds of NIL-STD-810 except that the peak acceleration shall be 40 gs. 3,10.5 Humidity. The MBD shall operate as specified herein at up to POO percent relative humidity. (see 4.7
26、.10.7) 3.10.6 - Dust. The MBD shall operate as specified herein after exposure .to moving dust for not less than 12 hours .at velocities up to 1750 feet per minute. (see 4.7.10.8) 3.10.7 Salt fog. The MBD shall operate as specified herein after exposure to a 5 percent sodium chloride atmozed spray f
27、or not less than 48 hours. (see 4.7.10.9) -4- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I _ - I MIL-M-705LI2 12 7777706 0355657 6 a - MIL-M-70542 (AR) 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified
28、 in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspec
29、tion requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 General p
30、rovisions. The component and subassembly inspec- tion requirements of MIL-F-13926 form a part of the quality assurance provisions of this specification. shall be as listed in MIL-STD-109. Definitions of inspection terms 4.2 Classification of inspections. The inspection requirements specified herein
31、are classified as follows: 1. 2. First article inspection (see 4.4). Quality conformance inspection (see 4.5). 4.3 Inspection conditions. Unless otherwise specified, all inspections shall be performed in accordance with the quality assurance provisions of MIL-F-13926 and the conditions of 3.2.1. 4.4
32、 First article. The requirement for first article approval and the designation of responsibility for first article inspection to either the Government or the contractor shall be specified in the contrac t. 4.4.1 Sample. The first article sample shall be three assemblies selected at random by the Gov
33、ernment representative from the first 15 production assemblies. 4.4.2 Inspection. The sample shall be subjected to all the inspections specified in Table I. 4.4.3 Failure. Failure of any assembly to meet any requirement shall be cause for refusal to grant first article approval. - The Government res
34、erves the right to terminate first article inspection upon any failure of any assembly to comply with any stated requirement. 4.4.4 Responsibility. The contractor, whether or not respon- sible, shall inspect the sample for conformance to al1 contractural requirements and-shall submit a record of thi
35、s inspection with the sample and certificates of conformance for materials. The Government reserves the right to witness inspections performed by the contractor. -5- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-355bb 2 MIL-M-70542 (AR) TABLE I. Fi
36、rst article tests. Item Characteristic Requirement Test procedure 1 Fabrication 3.1 Applicable visual dr awinigs 2 General specifications 3.2 MIL-F-13926 - Visual 3 Performance 3.5 4.7.4 4 Sealing 3.7 4.7.8 3.10.4 4.7 . 10.3 6 Vibration 3.10.3 4.7.10.2 7 High temperature 3.10.1 & 4.7.10.4 8 Low temp
37、erature 3.10.1 6 4.7.10.5 3.10.2 3.10.2 9 Temperature cycling 3.10.1 h 4.7.10.6 3.10.2 10 Humidity 3.10.5 4.7.10.7 3.10.6 4.7.10.8 12 Salt fog 3.10.7 4.7.10.9 4.5 Quality conformance inspection. Inspection plans A and B of 4i5.1 and 4.5.2 shall apply. 4.5.1 Inspection plan A. 4.5.1.1 General sample
38、and tests. One assembly, as a control sample, shall be selected at random by the Goverment representative from each 100 assemblies produced and shall be subjected to all the tests in Table III. 4.5.1.2 Environmental sample and tests. Two assemblies, as a control sample, shall be selected at random b
39、y the Government repre- sentative from each 100 assemblies produced or from each months pro- duction, whichever occurs first. All the tests in Table IV shall be applied separately to each assembly in the sample. 4.5.1.3 Acceptance. Where any one assembly of either sample faifs to meet any specified
40、requirement, the lot shall be rejected. Bejeeted lots shall be subjected to the provisions of MIL-STB-LOS. -6- - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-70592 12 7997706 0355661 MIL-M-70542 (AR) 4.5.2 Inspection plan B. 4.5.2.1 Sample a
41、nd tests. Each assembly in every lot shall be subjected to all the tests in Table II and shall be examined visually for-completeness, improper assembly and evidence of poor workmanship. 4.5.2.2 Acceptance. Where any one assembly fails to meet any specified requirement, the defective assembly shall b
42、e removed from the lot and resubmitted only after all defects have been corrected. 4.5.3 Inspection equipment. Except as otherwise provided for by the contract, the contractor shall supply and maintain inspection equipment in accordance with the applicable requirements of MIL-1-45607. 4.5.4 Packagin
43、g inspection. The sampling and inspection of the preservation - packaging, packing and container marking shall be in accordance with the provisions of packaging data sheet P11785384. 4.6 Inspection provisions. 4.6.1 Submission of product. Unless otherwise specified by the contracting officer, inspec
44、tion lot size, lot formation and presen- tation of lots shall be in accordance with “Submission of Product“ provisions of MIL-STD-105. 4.7 Examination and tests. 4.7.1 Components and subassemblies. All components and subassemblies shall be inspected in accordance with the applicable Quality Assuranc
45、e Provisions of MIL-F-13926. 4.7.2 Boresight collimator. Examination and tests herein shall be performed on a single defect (individual characteristics) basis in accordance with MIL-STD-105 and the sampling plans specified in Tables II and III herein. Examination and tests for packaging, packing and
46、 marking shall be in accordance with MIL-P-14232, Level B. Tables I, 11, and III shall constitute the minimum inspection to be performed by the supplier prior to Government acceptance or rejection by item or lot. 4.7.3 Inspection characteristics. 4.7.3.1 100 Percent inspection. The following require
47、ments and related tests shall be subjected to 100 percent inspection. -7- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-705q2 12 777770b 0355bb2 b Item 101 102 103 104 105 106 107 108 109 110 MIL-M-75042 (AR) Characteristic Requirement Test p
48、rocedure Collimation 3.5.1 4.7.4.1 Parallax 3.5.2 4.7.4.2 Repeatability/collimation 3.5.3 4.7.4.3.2 Resolution 3.5.5 4.7.4.5 Eyepiece focus 3.5.6 4.7.4.5 , Optical inspection 3.9.1 4.7.5.2 Mechanical inspection 3.9.2 4.7.5.3 Interchangeability 3.8 4.7.6 Purging 31 6 4.7.7 Sealing 3.7 4.7.8 TABLE II.
49、 Performance tests. Iten 201 202 203 , Characteristic Requirement Test procedure Magnification 3.5.7 4.7.4.6 Field of view, FOV 3.5.8 4.7.4.7 Transmission 3.5.4 4.7.4.4 e 4.7.3.2 Sampling inspection. TABLE III. Classification of defects. Class Critical: None Major : AQL 0.65X Defective Minor: None Note: Tests in Table II and III shall be conducted at a temperature between 15 degrees C and 32 degrees C, ambient temperatures. -8- Pr
