1、k. 7 NIL-1-87923 (3) 66 m 7777706 OL45bbb 5 m MIL-1-87 92 3 AMENDMENT 3 18 MARCH 1983 Suuersedina AMNDMENT -2 15 September 1981 MIL I TARY SPEC IF ICATION INDICATOR, TORQUEMETER, AEU-13 /A This amendment forms a part of Military Specification MIL-1-87923, dated 1 June 1979, and is approved for use b
2、y all Departments and Agencies of the Department of Defense. PAGE 2 2 1: Under “STANDARDS, Military“, delete “MIL-STD-785“. *Boxed paragraph: 49016“ and substitute “Oklahoma City Air Logistics Center/MMEDO, Tinker AFB OK 73145“. Delete “Hq AFLC CASO/LODS, Federal Center, Battle Creek MI PAGE 3 *3.1:
3、 Delete entirely and substitute the following: “3.1 First article. When specified (see 6.6), the contractor shall furnish sample unit(s) for first article inspection and approval (see 4.4).“ PAGE 8 3.4.9, line 7: Delete “36500“ and substitute “3650“. PAGE 15 3.5.1: Delete paragraph in its entirety.
4、3.8, line 4: Delete “goven“ and substitute “govern“. Add new paragraph as follows: “3.15 Reclaimed materials. The use of reclaimed materials shall be encouraged to the maximum extent possible without jeopardizing the intended end use of the item.“ PAGE ia *4.2.a: Delete “Qualification Tests“ and sub
5、stitute “First article inspection“ *4.4: Delete “Qualification testing“ and substitute “First article inspect ion“. *4.4.2: Delete “Qualification tests“ in title and line 1. Substitutue “First article inspection“. 1 of 3 FSC 6620 THIS DQCUMEN GQNTAlNS PAGES- Licensed by Information Handling Services
6、MIL-1-87923 (3) 66 m 7777906 0345bb7 7 m MIL-1-87923 AMENDMENT 3 PAGE 24 4.6.14: Delete first sentence and substitute: “The indicators main pointer shall not change more than 1 of arc when the lead length between the indicator and transmitter is changed from 5 to 150 feet of No. 22 AWG wire.“ PAGE 2
7、5 4.6.23, line 3: Delete “test plan I“ and substitute “test plan IC“. 4.6.23.1: Delete entire paragraph and substitute the following: “4.6.23.1 Test. Qualification Phase and Production Acceptance (Sampling) phase Tests of MIL-STD-781 shall be conducted. The test level conditions of temperature, inpu
8、t voltage, vibration and cycling of these conditions are as follows : 4.6.23.1.1 Temperature. Temperature shall be -54C to +55“C (-65 OF to +131 OF). 4.6.23.1.2 Temperature cycling. Temperature cycling shall be time to stabilize at low temperature followed by time to stabilize at high temperature, p
9、lus 2 hours. test level temperature. Turn the equipment on and allow it to experience the combined effect of chamber heating and equipment operation until the point of maximum thermal inertia stabilises at the higher temperature as determined in accordance with the thermal survey (see 5.1.5). Mainta
10、in the equipment at the upper test level temperature for two (2) hours. Turn the equipment off and allow it to experience chamber cooling until the point of maximum thermal inertia stabilizes at the lower test level temperature. This cycle shall continue for the duration of the test. Stabilize the e
11、quipment temperature at the lower 4.6.23.1.3 Vibration. at any nonresonant frequency between 20 and 60 Hz measured at the mounting point of the equipment. The duration of vibration shall be at least 10 minutes during each hour of operating time. When the indicator contains circuit boards or cards, v
12、ibration shall be normal to the plane of the majority of the cards. Otherwise, the direction of vibration is not critical. machine that contains a suitable motor and asymmetric weight.) It is recommended that the vibration equipment be checked for proper operation each 24 hours of operation, and tha
13、t the vibration transducer be “on“ and monitored continuously during vi brat ion. Vibration shall be 2.26 f 10% peak acceleration value (This vibration requirement may be met by a simple vibration 4.6.23.1.4 Equipment on-off cycling. Equipment shall be off during cooling cycle and on during heating
14、cycle. 4.6.23.1.5 Input voltage. Nominal specified voltage shall be +5-2% (See 3.4.18 and 4.3.4). 2 Licensed by Information Handling ServicesMIL-1-87923 (3) 66 m 9999906 OL456b 9 MIL-1-87923 AMENDMENT 3 4.6.23.1.6 Input voltage cycling. Input voltage cycling is not applicable unless otherwise specif
15、ied by the contract or order. The indicators shall be energized during the heating portion of the temperature cycle and supplied with a signal to cause it to be cycled as indicated in table III. completion of each 125 hours of cycling, the indicators shall be checked for scale error and friction. Th
16、e errors shall not exceed the tolerances specified in table II. If an indicator does not meet these tolerances, it shall be counted as a failure. in accordance with MIL-STD-781 which shall contain test procedures, details of any malfunctions, corrective actions taken, and other pertinent details as
17、suggested in Appendix F.? Upon The contractor shall prepare a final report Page 29 *6.2: Add ?f. First article inspection is/is not required?. 6.5: Delete paragraph in its entirety. *6.6 Delete paragraph and substitute the following: ?6.6 First article When specified in 6.2, the item will be inspect
18、ed and tested in accordance with Section 4 of this document. should include specific instructions in acquisition documents regarding arrangements for examinations, test and approval of the first article.? The contracting office NOTE: The margins of this amendment are marked with an asterisk to indic
19、ate where changes (additions, modifications, corrections, deletions) from the previous amendment were made. Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire cont
20、ent irrespective of the marginal notations and relationship to the last previous amendment. This was done as a convenience only and the Custodians : Air Force-99 Preparing Activity: Air Force-71 Project Number : 6620-F373 .I. *U.S. GOVERNMENT PRINTING OFFICE: 1983 - 605-034/1694 3 Licensed by Information Handling Services
