1、Comments, suggestions, or questions on this document should be addressed to Defense Supply Center Richmond, ATTN: DSCR-VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616 or e-mailed to STDZNMGTDLA.MIL. Since contact information can change, you may want to verify the currency of this address
2、information using the ASSIST database at http:/assist.daps.dla.mil. AMSC N/A FSC 6620 INCH-POUND MIL-DTL-38394E 16 February 2009 SUPERSEDING MIL-DTL-38394D 5 December 2003 DETAIL SPECIFICATION TRANSMITTER, PRESSURE TRU-81/A, OIL, 0-500 PSI This specification is approved for use by all departments an
3、d agencies of the Department of Defense. 1. SCOPE. This specification covers one type of remote-indicating, 320 degree movement, synchro style, differential, oil-pressure transmitter, designated TRU-81/A. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sect
4、ions 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must me
5、et all specified requirements of the documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications and standards. The following specifications, standards, and handbooks form a part of this document to the extent specified he
6、rein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-38394E 2 DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-DTL-5541 - Chemical C
7、onversion Coatings on Aluminum and Aluminum Alloys. MIL-DTL-6856 - Indicator, Pressure, Synchro, 1-1/2 Inch. MIL-I-7057 - Indicators, Synchro, Aircraft, General Specification for. MIL-A-8625 - Anodic Coatings for Aluminum and Aluminum Alloys. DEPARTMENT OF DEFENSE STANDARDS MIL-STD-130 - Identificat
8、ion Marking of U.S. Military Property. MIL-STD-461 - Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment. MIL-STD-810 - Environmental Engineering Considerations and Laboratory Tests. MIL-STD-889 - Dissimilar Metals. MIL-STD-1916 - DoD Preferred Me
9、thods for Acceptance of Products. MS33678 - Connector, Receptacle, Electric, Integral Mounting. DEPARTMENT OF DEFENSE HANDBOOKS MIL-HDBK-781 - Reliability Test Methods, Plans, and Environments for Engineering, Development, Qualification, and Production. MIL-HDBK-831 - Preparation of Test Reports MIL
10、-HDBK-5400 - Electronic Equipment, Airborne, General Guidelines for. (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.2.2 Specifications, Standar
11、ds, and handbooks (specific revision). The following specifications, standards, and handbooks of the exact revision listed below form a part of this specification to the extent specified herein. DEPARTMENT OF DEFENSE STANDARDS MIL-STD-704A - Aircraft Electric Power Characteristics. (dated 9 August 1
12、966) MIL-STD-810C - Environmental Engineering Considerations and Laboratory Tests. (dated 10 March 1975, Vibration tests only) (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, P
13、hiladelphia, PA 19111-5094.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-38394E 3 2.3 Non-government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues
14、 of these documents are those cited in the solicitation or contract (see 6.2). SAE INTERNATIONAL SAE-AMS-QQ-S-763 - Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings (DoD adopted). SAE-AS8879 - Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor Diameter (DoD ado
15、pted). SAE-AS20708 - Synchros, General Specification for (DoD adopted). SAE-AS5202 - Port or Fitting End, Internal Straight Thread, Design Standard (DoD adopted). (Copies of these documents are available online at http:/www.sae.org/ or from SAE International, 400 Commonwealth Drive, Warrendale, PA 1
16、5096-0001.) AEROSPACE INDUSTRIES ASSOCIATION (AIA) NASM21209 - Insert, Screw Thread, Coarse and Fine, Screw Locking, Helical Coil, Cres (DoD adopted). (Copies of these documents are available online at http:/www.aia-aerospace.org/ or from the Aerospace Industries Association, 1000 Wilson Boulevard,
17、Suite 1700, Arlington, VA 22209.) AMERICAN BEARING MANUFACTURERS ASSICIATION (ABMA) ABMA 12.1 - Instrument Ball Bearings, Metric Design ABMA 12.2 - Instrument Ball Bearings, Inch Design (Copies of these documents are available online at http:/www.abma-dc.org/ or from American Bearing Manufacturers A
18、ssociation, 2025 M Street, NW, Suite 800, Washington, DC 20036.) 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this docume
19、nt, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Qualification. Transmitters furnished under this specification shall be products that are authorized by the qualifying activity for listing on the applicable qualified products
20、list (QPL) before contract award (see 4.3 and 6.3). 3.2 Materials. Materials used in the manufacture of transmitters shall be suitable for the purpose and shall conform to applicable government specifications. Materials conforming to Provided by IHSNot for ResaleNo reproduction or networking permitt
21、ed without license from IHS-,-,-MIL-DTL-38394E 4 contractors specifications may be used provided such specifications are approved by the government and contain provisions for adequate tests. The use of the contractors specifications will not constitute waiver of government inspection. 3.2.1 Fungus-p
22、roof materials. Materials that are nutrients for fungi shall not be used where it is practical to avoid them. 3.2.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that
23、the material meets or exceeds the operational and maintenance requirements and promotes economically advantageous life cycle costs. 3.2.3 Metals. Metals shall be of the corrosion resistant type or suitably treated to resist corrosion due to fuels, salt fog, or atmospheric conditions likely to be met
24、 in storage or normal service. 3.2.4 Dissimilar metals. Unless suitably protected against electrolytic corrosion, dissimilar metals as defined in MIL-STD-889 shall not be used in intimate contact with each other. 3.2.5 Nonmagnetic materials. Nonmagnetic materials shall be used for all parts of the t
25、ransmitter except where magnetic materials are essential. 3.2.6 Corrosive fumes. Materials used in the construction of the transmitter shall not produce corrosive or deleterious fumes under the test conditions specified herein. 3.2.7 Protective treatment. When materials are used in the construction
26、of the indicator that are subject to deterioration when exposed to climatic and environmental conditions likely to occur during service usage, they shall be protected against such deterioration in a manner that will in no way prevent compliance with the performance requirements of this specification
27、. Protective coatings that will crack, chip, or scale with age or the extremes of climatic and environmental conditions shall not be used. 3.3 Design and construction. 3.3.1 Design. The transmitter shall be designed to operate with indicators conforming to MIL-DTL-6856 and MIL-I-7057. 3.3.1.1 Outlin
28、e dimension. The outline dimensions of the transmitter shall conform to figure 1. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-38394E 5 2.5 2ELECTRICALRECEPTACLEMS33678C-14S-2P2DIA111614MAX1258132ZERO ADJUST(LOCATIONOPTIONAL)(OPTIONAL OFCE
29、NTERLINE)VENT 4 hours at 329 F (165 C), lower temperature to -65 F (-54 C) at a rate of 9 F per minute (5 C per minute), and repeat cycle. Prior to the temperature changing from low to high and high to low, the power shall be turned off for a period of 10 minutes during each 10-hour cycle. b. Oil pr
30、essure shall be applied to the transmitter at a rate of 3 to 4 cycles per minute (cpm) from 0 to 80 5 percent of full scale and return to 0 for the duration of the 2,000 hours of testing. c. The transmitter shall be vibrated in accordance with MIL-STD-810C (10 March 1975), method 514, figure 514.2-2
31、, curve H at 10g for 10 minutes out of every hour of power “ON“ time. After every 25 test cycles the transmitter shall be reoriented 90 degrees so that another axis is tested. 4.6.24 Sensors matching. The transmitter adjustment shall be adjusted and locked for operation with the test indicator and t
32、he adjustment shall not be further disturbed for the balance of the sensor matching test. For each of the following conditions, the transmitter shall be tested and meet the scale error (sensor matching) at room temperature at the test points specified in Provided by IHSNot for ResaleNo reproduction
33、or networking permitted without license from IHS-,-,-MIL-DTL-38394E 18 table I for both up scale and down scale readings. The test point on the up scale readings shall be measured by bringing the input reading up to, but not exceeding, the specified test point. The down scale error shall be measured
34、 in the same manner except that the input reading value shall be brought down to, but not below, the specified test point. 4.6.24.1 20 psi vent pressure. A 20 psi pressure shall be applied to the vent port connection of the transmitter. Pressures shall be applied to the pressure port connection, whi
35、ch shall exceed that applied to the vent port connection by each of the test points listed in table I. 4.6.24.2 40 psi vent pressure. A 40 psi pressure shall be applied to the vent port connection of the transmitter. Pressures shall be applied to the pressure port connection, which shall exceed that
36、 applied to the vent port connection by each of the test points listed in table I. 5. PACKAGING 5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.2). When actual packaging of materiel is to be performed by DoD or in-house contra
37、ct personnel, these personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are maintained by the inventory control points packaging activities within the Military Service or Defense Agency, or within the military services system comma
38、nds. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting the responsible packaging activity. 6. NOTES (This section contains information of a general, or explanatory nature that may be helpful, b
39、ut is not mandatory.) 6.1 Intended use. The TRU-81/A transmitter covered by this specification is intended for use in transmitting the lubricating system oil pressure of aircraft engines by electrical signal to an indicator or indicators. 6.2 Acquisition requirements. Acquisition documents should sp
40、ecify the following: a. Title, number, and date of this specification. b. Issue of individual documents referenced (see 2.2.1 and 2.3). c. Electromagnetic interference requirements, if different (see 3.4.8). d. Special test conditions, if any (see 4.2). e. Sampling plan, A or B (see 4.5). f. Packagi
41、ng requirements (see 5.1). 6.3 Qualification. With respect to products requiring qualification, awards will be made only for products which are, at the time of award of contract, qualified for inclusion in QPL-38394 whether or not such products have actually been so listed by that date. The attentio
42、n of the contractors is called to these requirements, and manufacturers are urged to arrange to have the products that they propose to offer to the Federal Government tested for qualification in order that Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
43、,-,-MIL-DTL-38394E 19 they may be eligible to be awarded contracts or orders for the products covered by this specification. Information pertaining to qualification of products may be obtained from Defense Supply Center Richmond, ATTN: DSCR-VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616.
44、 6.4 Subject term (key word) listing. aircraft differential remote-indicating signal synchro 6.5 Changes from previous issue. The margins of this specification are marked with vertical lines to indicate where changes from the previous issue were made. This was done as a convenience only and the Gove
45、rnment assumes no liability whatsoever for any inaccuracies in these notions. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Custodian: Preparing Activ
46、ity: Air Force 99 DLA GS1 DLA - GS1 (Project 6620-2009-001) Review Activity: Air Force 11 Air Force 71 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST database at http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
