1、i MIL-PRF-71223 999990b 2028415 413 = MIL-PRF-7 1223 (AR) 17 September 1996 PERFORMANCE SPECIFICATION TELESCOPE ASSEMBLY, BORESIGHT, COMMON This specification is appmved for use by the U.S. Army Armament Research, Development and Engineering Center, and is available for use by all Departments and Ag
2、encies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification establishes the performance and design requinments for the Boresight Telescope Assembly and the Muzzle Boresight Device that uses a common telescope. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section
3、are needed to meet the requirements specified in sections 3,4, and 5 of this specification. This section does not include documents in other sections of this specification or recommended for additional information or as examples. While every effort has been macle to ensure the completeness of this i
4、ist, document users are cautioned that they must meet all requirements documents cited in sections 3,4, and 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 SDecifications. standards, and handbooks. The following specifications, standards, and handbooks form a
5、 part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Beneficial comments
6、(recommendations, additions, deletions) and any pertinent data which may be of use in improving this document, should be addressed to: Commander, U.S. Army ARDEC, A“: AMSTA-AR-EDE-S, Picatinny Arsenal, New Jersey 07806-5000 by using the Standardization Document Improvement Proposal D Form 1426) appe
7、aring at the end of this document or by letter. AMSC NIA 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-,-,- MIL-PRF-71223 0b 2028416 35T D MIL-PRF-7 1223 SPECIFI
8、CATIONS A-A- 1898 BB-N-411 Nitrogen, Technical ZZV-25 Cushion Material, Cellulosic, Packaging Valves and Valve Spuds, Caps, and Cores, Pneumatic Tires DEPARTMENT OF DEFENSE MIL-(2-675 MIL-0-13830 Coating of Glass Optical Elements Optical Components for Fire Control Instruments, General Specification
9、 Governing The Manufacture, Assembly, And inspection of STANDARDS DEPARTMENT OF DEFENSE MIL-STD-129 MIL-STD-130 MIL-STD-171 MIL-STD-810 Environmentai Test Methods MS20813 MS51607 Valve Stems, Purging Marking for Shipment and Storage Identification Marking of U.S. Military Property Finishing of Metal
10、 and Wood Surface Cap, Pneumatic, Valve, High Pressure (unless otherwise indicated, copies of the above specifications, standards, and handbooks are available from DDSSP - Customer Service, Standardization Documents Order Desk, 700 Robbins Avenue, Bldg. 4D, Philadelphia, PA 191 11-5094.) 2.2.2 Other
11、 Government documents. drawins. and mblications. The following other Government documents, drawings, and publications form a part of this document to the extent specified hemin. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS US ARMY ARMAMENT RESEARCH, DEVELOPMEN
12、T AND ENGINEERING CENTER (ARDEC) Drawings for the Braley Gun Systems 5910791 Streamer Assembly, Baresight 12524001 Barrel Assembly 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-11825986 12524004 12524 144 12524490 12524491 11826002 12524142 12524
13、008 11826004 12977226 122959 19 MIL-PRF-7 1223 Banel, Gun Brake, Muzzle Adapter Assy, Boresight Barrel, 25 mm Brake, Muzzle FlashHider Boresight Adapter Gun, Automatic, 25mm, M242 (Reference) Machine Gun, 7.62mm, M24OC (Reference) Housing, Launcher carrying- Drawings for Abrams Tank Weapon Systems 5
14、91079 1 Streamer Assembly, Boresight 125283 1 1 11579696 Tube, Gun M68 (105mm) 12956803 Tube, Gun M256 (120mm) Assembly, Case for M26A2lM27A2 MBD (Reference) (Copies of other Government documents, drawings, and publications requinxi by contractors in COMCXOII with specific acquisition functions shou
15、ld be obtained from the contracting activity or as directed by the contracting activity.) 2.3 Non-Government mblications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted are those lis
16、ted in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS ASTM D 1974 ASTM D395 1 Standard Practice for Methods
17、 of Closing, Sealing, and Reinforcing Fiberboard Boxes Standard Practice for Commercial Packaging (Application for copies of ASTM publications should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103-1187.) 2.4 Order of precedence. In the event
18、of a confiict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specifii exemption has been obtain the objective lens cover shail be black in color and
19、shall have a 3/16 inch centered hole to minimize parallax; ail adjustment screws shall have standard slotted or Phillips heads. A circular plate shad be mounted on the body of the operating hanle to provide the means of making its position relative to the 12 oclock or 6 OCOC dimple on the face of th
20、e gun tube. 3.4.3 Otical commnents. All optical elements, components and assemblies shall comply with the requirements of MIL-0-13830. 3.4.4 Optical coating. The lens elements shall meet the requirements of MIL-C-675. 3.4.5 Reticle. The reticle shall have a clearly defined aiming index and shall be
21、visible at 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-71223 9999906 2028420 80 MIL-PRF-7 1223 night without the use of generated or stored electricity in the device itself, with no other marks on the lens. The reticle shall not contai
22、n tritium and shall be visible with the use of an external light source such as a flashlight. 3.4.6 Reticle adiustment. Reticle adjustment shall be accomplished with the use of externally situated elevation and azimuth control knobs. Elevation shall be adjustable using a single elevation control kno
23、b, and azimuth shall be adjustable using a single azimuth control knob. These hobs shall be protected from accidental disruption and shaU provide ease of adjustment by an individual wearing a Nuclear, Biological and Chemical protective equipment such as a pair of gloves. 3.4.7 Eve relief. The eye re
24、lief shall be 12.0 mm minimum in diameter. 3.4.8 Exit uuuil. The exit pupil shall be 2.5 mm minimum in diameter. 3.4.9 Pressurization. The interior of telescope shall be pressuxized to an internal pressure of 351.5 +/- 7.031 gfl cm (5.0 +/- .1 psig ) with nitrogen gas conforming to BB-N-411, type I,
25、 class I, grade B with a dew point less than -31.6 O C (-25 O F). 3.4.10 Pureing. The purging of the telescope shall be accomplished through the use of a valve stem, MS51607-1; valve core, ZZ-V-25 type V, class 2 and cap, MS20813-1. 3.4.1 1 Finish. For aluminum components, the BTA/MBDs shall have a
26、protective finish of 7.1.2 or 7.2.2 (black) of MIL-STD-171. For steel surfaces, the BTA/MBDs shall have a protective finish of 5.1.1 plus 20.24 of MIL-STD-171. For surfaces interfacing with gun bore, a wear finish of nickel or chromium plating shall be applied per 1.4.3.2 or 1.2.2 of MIL-STD-171 res
27、pectively. Thichess of plating shall be sufficient to meet the requkments of 3.4.7. 3.4.12 Lubricant, All moving parts of the BTA and MBD shall be lubricated with a suitable lubricant which permits an operating range of temperature from -3 1.7 OC to +5 1.7 O C (-25 OF to +125 OF). 3.5 Environmental.
28、 3.5.1 Operating temperature. The BTA, and both M26A2 and M27A2 MBDs shall meet the requirements of 3.3 during and after having been exposed at the operating temperature of -31.7 OC and +51.7 “C (-25 O Fand +125 O F). 3.5.2 Storage temuerature. The BTA and both M26A2 and M27A2 MBDs shall meet the re
29、qukments of 3.3 after having been exposed and thermally stabilized in the CC at temperams Of -53.9 OC and +71.1 “C (-65 OF and+160“F). 4 3.5.3 Vibration. The BTA and both M26A2 and M27A2 MBDs cased in the CCs shall meet the requirements of 3.3 after being subjected to vibration of magnitude and freq
30、uencies specified in Table I, Vibration Levels. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-7 1223 Axis All 3.5.4 Shock. The BTA and both M26A2 and M27A2 MBDs shall meet the requirements of 3.3 after having been exposed in their CCs to
31、three shock impulses of 30 +/- 3gs and 40 +/- 4 gs respectively, 11.0 +/- 1.1 milliseconds (ms) half sine wave applied in each direction of 3 mutually perpendicular axes. Frequency (Hz) Amplitude 2.7 to 5.5 1 .O” DA TABLE I. VIBRATION LEVELS -5.5 t 38 38 to 50 50 to 200 +/- 1.5g .002” DA +/- 2.5g -
32、Note: DA - double axis g - gravity force 3.5.4.1 Bench handling shock The BTA and both M26A2 and M27A2 MBDs shall meet the requirements of 3.3 after being subjected to bench handling shock as specified in method 516, procedure Vi of MIL-STD-810. 3.5.5 Altitude. The BTA and M26A2 and M27A2 MBDs shall
33、 meet the requirements of 3.3 after exposure to an atmospheric pressure equivalent to 12,192 meters (40,000 feet) above sea level for not less than one hour. 3.5.6 Humidity. The BTA and both M26A2 and M27A2 MBDs shall show no evidence of internal moisture during and after exposure of up to 100% rela
34、tive humidity. The BTA and both MBDs shall meet the requirements of 3.3.1 during exposure and requirements of 3.3 after exposure of up to 100% relative humidity. 3.5.7 Salt fog. The BTA and M26A2 and M27A2 MBDs shall meet the requbements of 3.3 after being exposed to a 5% sodium chloride atomized sp
35、ray for not less than 48 hours outside the CC. There shall be no evidence of comsion on the BTA, MBDs, or the CC. 3.5.8 m. The BTA and M26A2 and M27A2 MBDs shall meet the requkments of 3.3 after being exposed to moving dust for not less than 12 hours at velocities up to 533.4 meters per minute (1750
36、 feet per minute). 3.6 WarkmanshiD. All optical and mechanical parts of the BTA and MBDs and mechanical parts of the CC shall be free fiom broken parts, poor workmanship or functionality. When a focus target is viewed through the eyepiece end, there shall be no scratches, chips or coating deteriorat
37、ion which would distract the observer. All burrs, sharp edges and excess material that m discernible to the user shall be removed. 3.7 Markings. The BTA and MBDs shall be marked for identification in accordance with 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
38、se from IHS-,-,- MIL-PRF-71223 M 9999906 2028422 b53 MIL-PRF-7 1223 MIL-STD-130 and shall contain the following information: a. Model name/number b. Manufactureis name and Cage Code c. Contract Number d. National Stock Number e. Part Number. For the M26A2 MBD, the part number sAl be : “50C f. Serial
39、 Number 105MM“. For the M27A2 MBD, the part number shail be: “50D1438G2-120MM“. 43 G1- 4. VERIFICATION 4.1 Sub-contracts. The contractor shall be responsible for compliance with all requixements of the contract, the drawings and specifications on the part of the subcontractors, including those who s
40、upply raw materials; evidence of such compliance shail be supplied by the contractor. 4.2 Classification of insuections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.3) b. Conformance inspection (see 4.4) 4.2.1 Inspection conditions. Unle
41、ss otherwise specified, measurements and test shall be perfomed at standard ambient conditions as specified in MIL-STD-810. 4.3 First Article insuection. 4.3.1 Submission. The contractor shail submit a fit article sample as designated by the Contracting Wicer. The first article sample shall consist
42、of two (2) BTAs and two (2) CCs selected from the first 15 BTAs and 15 CCs produced or as otherwise specified in the contract, For the MBDs, the first article sample shall consist two (2) MBDs and two (2) CCs selected from the first 15 M26A2 and M27A2 MBDs and the first 15 corresponding CCs produced
43、 or as otherwise specified in the contract. The first article sample shail be inspected in accarcance with 4.3.2. A First Article Test (FAT) procedure shail be prepared by the contractor and shall be submitted to the Government for approval before the FAT inspection. 4.3.2 Inspections to be wrformed
44、. As detemiined by the Government, the fmt article sample shall be subjected to any OT ail of the examinations and test specified in this specification (see Table II) and be inspected far compliance with any or all requhements of this specification and the applicable drawings. Environmental Characte
45、ristics specified in 4.5.3.2,4.5.3.3 and 4.5.3.4 shall be performed with the BTA and MBDs cased in CCs. The contractor shail verify the permance Characteristics after each environmental exposure of 4.5.3. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
46、-,-,- MIL-PRF-71223 999990b 2028423 59T MIL-PRF-7 1223 4.3.3 Rektion. If any test sample fails to comply with any of the applicable requirements, the fmt article sample shall be rejected. The Government reserves the right to terminate inspection upon any failure of an assembly to comply with any of
47、the requirements. 4.3.4 First article units. BTAs and MBDs used in the First Article tests axe not deliverable and shall be marked “Do Not Use“. 4.4 Conformance inspeztion. Ail deliverable assemblies shall be subjected to conformance Inspection. See Table II, Examination and Tests, in column CI for
48、requirements and frequencies of inspection. TABLE 11. Examination and Tests. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-7 1223 TABLE II. Examination and Tests - Continued. Characteristics Requhment Verification FAT for Conformance Para
49、graph Methods initial Inspection Bench handling Altitude salt fog Dust warkmanship Note: 100% = 100% inspection required. control = 1 out of every 50 produced. 1/200 = 1 out of every 200 produced after three consecutive successes. coc = certificate of conformance. x = required for First Article test. production (CI 3.5.5 4.5.3.4.3 X control 3.5.6 4.5.3.6 X 3.5.7 4.5.3.7 X 3.5.8 4.5.3.8 X
