1、 MIL-A-70752 23 W 777970b 0440085 3 MIL-A-70952 (AR) 23 March 1990 MILITARY SPECIFICATION ALTERNATOR, TURBINE (AIR DRIVEN) This Specification is approved for use within the U.S. Army Armament, Munitions and Chemical command, and is available for use by al1 Departments and Agencies of the Department
2、of Defense. 1, SCOPE 1,l Scope. This specification covers the requirements, quality assurance provisions and packaging of the turbine alternator (T/A) for the M745 Point-Detonating (PD) Mortar Fuze. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following s
3、pecifications and standards foxm a part of this specification to the extent specified herein. Unless otherwise specified the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the s
4、olicitation. SPECIFICATIONS MILITARY MI L-P - 11 6 - Preservation, Methods of MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification for Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document,
5、should be addressed to: U.S. Army ARDEC, ATTN: SMCAR-BAC-, Picatinny Arsenal, New Jersey 07886-5000 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. Commander AMSC NIA FSC 1390 =IRUTION STATEMENT 4, Approved
6、for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-A-70952 13 9 777770b 04400b 5 9 MIL-A-70952 (AR) STANDARDS MILITARY MIL-STD-105 MIL-STD-331 MIL-STD-1169 MIL-STD-4 5662 (Unless otherwise - Sampling P
7、rocedures and Tables for Inspection by Attributes - Fuze and Fuze Components, Environ- mental and Performance Test - Packaging, Packing and Marking for Shipment of Inert Ammunition Components - Calibration Systems Requirements indicated, copies of federal and military specifications, standards, and
8、handbooks are available from: Military Specifications and Standards, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19911-5094). 2.1.2 Other Government documents, drawings and publications. The following other Government documents, drawings, and publications form a part of this specification to the
9、extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation. DRAW1 NGS US ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) PRODUCT AND PACKAGING DRAWINGS 11927121 - Turbine Alternator, Air Driven INSPECTION EQUIPMENT DRAW
10、INGS 11927112 - Test Equipment 11927113 - Test Vehicle (Copies of specific.ations, standards, handbooks, drawings, and publications requited by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer).
11、 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-A-70752 13 H 7777706 O440087 7 M MIL-A-70952 (AR) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise specified, t
12、he issue of the documents which are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. Unless otherwise specified, the issues of the documents not listed in the DoDISS shall be the issue of the nongovernment documents which is current on the date of the solic
13、itation. American Society for Testing and Materials (ASTM) ASTM A344 Testing of Magnetic Materials (Copies may be purchased directly from the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA. 19103) . 2.3 Order of precedence. In the event of a conflict between the text
14、of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific e
15、xemption has been obtained. 3 . REQUIREMENTS 3,l Construction. The device shall be constructed in accordance with applicable drawings, specified herein. Any unit failing to satisfy the requirements specified in (3.3.1) shall be excluded from the lots. Variance from dimensions and characteristics as
16、depicted on Interface Drawing No. 11927121 will not be permitted unless request for such variance states that interface dimensions are involved. 3.1.1 Materials. Materials shall be those specified by the applicable drawcngs. 3.2 Turbine alternator assemblies. The turbine alternator assemblies and pa
17、rts shall comply with all requirements specified on drawing (dwg.) 11927121 and with all requirements specified in applicable specifications and standards. 3.3 Performance requirements. 3.3.1 Operating requirements. when air pressures of the indicated magnitudes are directed at the turbine of the tu
18、rbine alternator, the shaft of the device shall rotate at a rate between the indicated minimum and maximum values stated below. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-A-70752 13 M 777770b O440088 7 MIL-A-70952 (AR) 3.3.1.1 Low pressur
19、e requirements. When subjected to an input air pressure of 0.206 pounds per square inch (psi) the shaft rotational speed shall remain within the stated limits over a period of ten seconds. Revolutions aer minute (rrm) Temperature Minimum Maximum 3.3 .E.1.1 Ambient 25,000 29,000 3.3.1.1.2 -50 degrees
20、 F 20,000 27,000 3.3.1.1.3 +145 degrees F 25,000 30,000 3.3.1.2 High pressure requirements. When subjected to an input air pressure of 3.5 psi for a period of one minute the shaft rotational speed shall not exceed ll8,OOO rpm. This requirement applies at all temperatures from -500F to t 1450 F. Alth
21、ough a gradual increase or decrease in rpm is permissible during the one minute of operation, there shall be no sudden decrease or increase in. rotational rate. into a fixture similar to an inert M45 fuze and subjected to the following environmental conditioning will continue to satisfy the requirem
22、ents of 3.3.1 following that conditioning. 3.3.2 Environmental requirements. The device assembled 3.3.2.1 Temperature and humidity testing. MIL-STD-331, procedure 105. 3.3.2.2 Other environments. The device is expected to survive all the other non-destructive environments defined in the specificatio
23、n for the M745 PD fuze; e.g., transportation- vibration, rough handling, etc. However, these environments are not specifically evaluated at the device level. chips, dirt, grease and other foreign matter that may impair proper functioning. The cleaning method used shall not be injurious to any of the
24、 parts, nor shall the parts be contaminated. 3.4 Workmanship. Parts and assemblies shall be free from 3.5 First article inspection. This specification contains technical provisions for first articl4 inspection. Require- ments for the submission of first article samples by the contractor shall. be as
25、 specified in the contract. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-70752 13 7777706 0440089 O MIL-A-70952 (AR) 4, QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise mecified in the contract or Durchase ord
26、er, 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 inspection requirements specified here
27、in, 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. Unless otherwise specified herein or in the con
28、tract, the provisions of MIL-A-48078 shall apply and are hereby made a part of this detail specification. 4.1.1 Responsibility for compliance. All items must meet all requirements of sections 3 and 5. The inspections set forth in this specification shall become a part of the contractorls overall ins
29、pection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of assuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in qua
30、lity conformance does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. 4.1.2 Alternate inspection provisions. Alternative inspection procedures, methods or equipment (including tool inspection, st
31、atistical process control, substitute sampling plans, etc.) may be used by the contractor when they provide, as a minimum the level of quality assurance required by the provisions specified herein. Prior to applying such alternative inspection procedures, methods or equipment, the contractor shall d
32、escribe them in a written proposal submitted to the Procuring Contracting Officer for evaluation and approval by the Government. When required, the contractor shall demonstrate that the effectiveness of the proposed alternative(s) is equal to or better than the quality assurance provisions herein. I
33、n cases of dispute as to whether certain procedures of the contractorls proposed alternative(s) provide equal assurance, the provisions of this specification shall apply. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, MIL-A-70752 13 777770b 0440
34、070 7 M MIL-A-70952 (AR) 4.2 Classification of inspections. The following types of inspections shall be conducted on this item. a. First article inspection b. Quality conformance inspection 4.3. First article inspection. 4.3.1 Submission. The contractor shall submit a first article sample as designa
35、ted by the contracting officer for evaluation in accordance with provisions of 4.3.2. The FAAS shall comprise (1) ten sets of the seven piece parts together with measurements of each and every quantified parameter appearing on their respective drawings, (2) 50 sets of the 12 piece parts, subassembli
36、es and final assembly together with the measurements made on them to the Classification of Defects called out in 4.4.2.1 to 4.4.2.12 and (3) 244 turbine alternators subjected to the testing outlined in Figure 1. Fifty units, as comparison samples, selected at random from each accepted lot shall be s
37、hipped within two working days of lot acceptance to the technical agency designated by the procuring activity (6.3). If any part is manufactured by a multicavity process; e.g., by stamping, molding, etc., ten properly marked samples from each cavity are required for inspection. 4.3.2 Inspections to
38、be performed. See MIL-A-48078 and figure I specified herein. 4.3.3 Rejection. See MIL-A-48078. . 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-70952 13 m 777770b 0440071 7 m MIL-A-70952 (AR) P/N 11927106 C of D MEASUREMENTS on 50 sets of pa
39、rts 4.4.2.1 to 4.4.2.12 Lo Press/Amb. Temp. 4.6.1.1 3.3.1.1.1 -. I 4.3.1 50 shipped to designated 6 . Spares List of Piece Parts (7 piece parts = 1 set) for First Article Inspect ion: 1. Magnet 11927127 2, Turbine 11927132 3. Bobbin 11927133 4. Bearing 11927 11 1 5. Shaft 11927130 6. Housing 1192713
40、1 7. . End Plate 11927129 General Notes : a. If any piece part is manu- factured by a multicavity process 10 parts are required from each cavity. b, 100% inspection will be required for all piece parts. c. Variable data is required on all inspections except for the Turbine Blade Tips where go-no-go
41、data may be supplied from a certified comparator chart. Condition At Temperature and Humidi r 4.6.2 Low Press/Hi Temp. 4.6.1.2 3.3.1.1.3 N = 50 Hi Press/Low Temp. Hi Press/Hi Temp. 4.6.1.4 3.3.1.2 1 4,6.1.4 3.3.1.2 Figure 1 First Article Inspection Flow Diagram 7 Provided by IHSNot for ResaleNo repr
42、oduction or networking permitted without license from IHS-,-,-1 - MIL-A-70752 13 7779706 0440072 O W MIL-A-70952 (AR) 4.4 Quality Conformance inspection, 4.4.1 inspection lot formation. Inspection lots shall comply with the lot formation provisions of MIL-A-48078. 4.4.2 Examination. See MIL-A-48078
43、4.4.2.1 Sampling plans. unless otherwise specified in the classification of Defects and Test tables, sampling plans and procedures for major and minor defects shall be in accordance with MIL-STD-105, inspection level II. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without
44、license from IHS-,-,-E s rl b rl P MIL-A-70752 13 m 7779706 0440073 2 m n c a, 3 .d Li R Li .d 4 a, c -d 5 E-i Li O U m c LI a, U Y e b dPdPdP dPdP O00 O0 *e *w O00 O0 0 dPdPdP O00 *-Y* O00 eo. 5 a, c .li (I-i a, v a, c O 2 5 a, c 4 Cu a, 5 a, O z k mhm nI 9 Provided by IHSNot for ResaleNo reproduct
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46、00 . . WW O0 E Oa, 5 uua, oco ccu uau 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-70952 13 799990b 0440095 b z O H H u w pi v1 z H w u 2 p: O Frc z O u H H H cl O 3 r w c i3 n 8 c d Y w Z O 5 !i f U E dPdP a, dP O0 o o di* di di O0 o o .
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48、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I-_ . MIL-A-70752 13 m 774770b 0440076 m h ffi 4 Y Cu Ln cn O I- l 4 I 4 c E E Y 9 c ri Y Y P 8 0 z 9 u rl Id U -ri c, pi O rl a, tn Id c3 Cu mm m m m m *I Cu- Cu Cu Cu .e . . . dp dpdp dp dp a, O O0 o o o * *e *
49、 * * O O0 o o o . e. . . . dp u) W O . W a, E: -ri 4-i a, a a, c O 2 LI a, Li m *rl W u) O rl rl O u a, A ci g . a, rl m E: m a, 3 O O LI tn a, c a, ci b W -ti O 3 m rl I- al _ a, O c . O I) W a, a, o x w rl (dl 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
