1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.Copyright 2011 Society of Automotive Engineers, Inc.All rights reserved.Printed in U.S.A
3、.TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS: http:/www.sae.orgAEROSPACE STANDARDAS85352Issued 2002-02Inflator Assembly and Gage Elements, Pneumatic Pressure,Remote Control, Direct ReadingFSC 4920NOTICEThis document has been taken directly from U.S. Military Specific
4、ation MIL-I-85352, Amendment 3 and contains only minor editorial and format changes required to bring it into conformance with the publishing requirements of SAE technical standards. The initial release of this document is intended to replace MIL-I-85352, Amendment 3. Any part numbers established by
5、 the original specification remain unchanged.The original Military Specification was adopted as an SAE standard under the provisions of the SAE Technical Standards Board (TSB) Rules and Regulations (TSB 001) pertaining to accelerated adoption of government specifications and standards. TSB rules pro
6、vide for (a) the publication of portions of unrevised government specifications and standards without consensus voting at the SAE Committee level, and (b) the use of the existing government specification or standard format.Under Department of Defense policies and procedures, any qualification requir
7、ements and associated qualified products lists are mandatory for DOD contracts. Any requirement relating to qualified products lists (QPLs) has not been adopted by SAE and is not part of this SAE technical document.SAE values your input. To provide feedback on this Technical Report, please visit htt
8、p:/www.sae.org/technical/standards/AS85352Reaffirmed 2011-01SAE AS85352- 2 -1. SCOPE:1.1 Scope:This specification covers a direct reading, remote control, pneumatic pressure inflator assembly, for use on aircraft tires and struts having pneumatic pressure requirements up to 600 psi. It includes pres
9、sure relief provisions to provide for safe inflation. Also included are dual chuck stem gages for measuring tire pressure.1.2 Classification:Inflator assemblies and gage elements shall be as specified in the following table (see 6.2).2. APPLICABLE DOCUMENTS:2.1 Government documents:2.1.1 Specificati
10、ons, standards, and handbooks: The following specifications, standards, and handbooks form a part of this specification to the extend 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 an
11、d Standards (DODISS) and supplement thereto, cited in the solicitation.SPECIFICATIONSFederalPPP-C-1120 Cushioning Material, Uncompressed Bound Fiber for PackagingSAE AS85352- 3 -MilitaryMIL-P-116 Preservation, Packaging, Methods ofMIL-H-13531 Hose, Rubber and Hose Assembly, Rubber (Hydraulic, Flexib
12、le)MIL-P-24074 Polytetrafluoroethylene Parts and Coatings and Polyanide PartsMIL-T-27730 Tape, Antiseize, Tetrafluoroethylene, with DispenserMIL-I-85352/1 Inflator Assembly KitMIL-I-85352/2 Remote Controller AssemblyMIL-I-85352/3 Gage ElementsMIL-I-85352/4 Dual Chuck Stem Gage KitSTANDARDSFederalFED
13、-STD-595 ColorMilitaryDOD-STD-100 Engineering Drawing PracticesMIL-STD-105 Sampling Procedures and Tables for Inspection by AttributesMIL-STD-129 Marking for Shipment and StorageMIL-STD-130 Identification Marking of U.S. Military PropertyMIL-STD-143 Specifications and Standards, Order or Precedence
14、for the Selection ofMIL-STD-794 Part and Equipment, Procedures for Packaging and Packing ofMIL-STD-808 Finish, Protective, and Codes for Finishing Schemes for Ground and Ground Support EquipmentMIL-STD-831 Test Reports, Preparation ofMIL-STD-889 Dissimilar MetalsMS28889 Valve, Air, High-Pressure Cha
15、rgingAN912 Bushing, Pipe(When requesting applicable documents, refer to both title and number. Copies of unclassified documents may be obtained from the Commanding Officer, Naval Publications and Forms Center, 5801 Tabor Avenue, Philadelphia, Pennsylvania 19120. Requests for copies of classified doc
16、uments should be addressed to the Naval Publications and Forms Center, via the cognizant Government representative.)SAE AS85352- 4 -2.2 Other publications:The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect on date
17、 of invitation for bids or request for proposal shall apply. American National Standard InstituteANSI-B40.1 Gages, Pressure Indicating Dial Type, Elastic(Copies of the above publication may be obtained from the American National Standards Institute, 1430 Broadway, New York, NY 10018.)National Bureau
18、 of StandardsHandbook H28 Screw-Thread Standards for Federal Services(Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, D.C. 20402.)3. REQUIREMENTS:3.1 Specification sheets:The individual part requirements shall be as specified her
19、ein and in accordance with the applicable specification sheets. In the event of conflict between the requirements of this specification and the specification sheet, the requirements of the specification sheet shall govern.3.2 First article:The parts furnished under this specification shall be a prod
20、uct which has been inspected and passed the first article inspection specified herein (see 4.3).3.3 Selection of specifications and standards:Specifications and standards for necessary commodities and services not specified herein shall be selected in accordance with MIL-STD-143, except as provided
21、in 3.2.1.3.3.1 Commercial parts: Commercial parts having suitable properties may be used where, on the date of invitation for bids, there are no suitable standard parts. In any case, commercial utility parts such as screws, bolts, nuts, and cotter pins having suitable properties may be used provided
22、:a. They can be replaced by the MS or AN standard parts without alteration.b. The corresponding standard part numbers are referenced in the parts list and, if practical, on the contractors drawings.SAE AS85352- 5 -3.4 Materials:Materials shall conform to applicable specifications or standards and sh
23、all be as specified herein. Materials which are not covered by applicable specifications or standards shall be of the best quality, and entirely suitable for the purpose intended.3.4.1 Metals: Metals shall be of the corrosion-resistant type or treated to resist corrosion. All metal stock used in the
24、 fabrication of inflator assemblies shall have a properly refined structure with uniform elemental distribution, sound and free from nonmetallic inclusions, injurious porosity, excess segregation, soft spots, hard spots, and other injurious defects.3.4.2 Metal parts: All metal parts shall be of corr
25、osion-resistant material or treated in a manner to render them adequately resistant to corrosion.3.4.3 Dissimilar metals: Unless suitably protected against electrolytic corrosion, dissimilar metals shall not be used in intimate contact with each other. Dissimilar metals are defined in MIL-STD-889.3.
26、4.4 Fungus proof materials: Materials that are nutrients of fungi shall not be used.3.5 Design and construction:The inflator assembly shall be designed to provide a safe, reliable and accurate means for remote controlled inflation, deflation, and gaging pneumatic pressure. The dual chuck stem gage s
27、hall be designed to provide a safe, reliable and accurate means for gaging pneumatic pressure. The inflator assembly and dual chuck stem gages shall be so constructed that parts will not work loose in service. It shall be built to withstand the strains, shocks, vibrations, and environmental conditio
28、ns incident to shipping, storage, and service. The configurations shall be as shown in Figures 1 and 2. The gage elements Size 1 and 2, shall be complete self-contained units and interchangeable within the inflator assembly and dual chuck stem gage. The relief valve shall provide pressure relief to
29、prevent overinflation.3.5.1 Threads: All threaded components shall conform to the applicable requirements of the National Bureau of Standards Handbook H-28. All pipe thread connections shall be assembled with antiseize tape conforming to MIL-T-27730.3.5.2 Fastening devices: All screws, pins, and sim
30、ilar parts shall be installed with adequate means for preventing loss of proper tightness and adjustment. Parts subject to removal or adjustment shall not be swaged, peened, staked, or otherwise deformed.3.5.3 Welding, brazing, and soldering: Welding, brazing, and soldering shall be performed in acc
31、ordance with the best commercial practice and shall be used only when such operations are required for assemblies in the original design. In no event shall such processes be used as a repair medium for faulty parts.SAE AS85352- 6 -FIGURE 1. Inflator assemblySAE AS85352- 7 -FIGURE 2. Tire valve adapt
32、erSAE AS85352- 8 -3.6 Maintainability:The inflator assembly and dual chuck stem gages shall have a minimum number of parts consistent with reliability. All parts subject to disassembly for maintenance purposes shall be readily accessible for adjustments, repairs, and cleaning without the use of spec
33、ial tools.3.7 Performance characteristics:The inflator assembly shall meet the performance tests in Section 4 in the order listed below:a. Scale error at room temperature (4.6.2)b. Overpressure (4.6.3)c. Endurance (4.6.4)d. Drop test (4.6.5)e. Cold test (4.6.6)f. Heat test (4.6.7)g. Friction test (4
34、.6.8)h. Calibration test (4.6.9)i. Valve adapter test (4.6.10)The dual chuck stem gage shall be subjected to the endurance and drop test only. The gage element used in the dual chuck stem gage shall be tested as part of the inflator assembly for the remaining test listed.3.8 Inflator assembly kit:Th
35、e inflator assembly kit shall conform to MIL-I-85352/1 and consist of a gage element, remote-controller, hose/tire valve adapter assembly, relief valve, carrying case, and inlet fitting.3.8.1 Gage element: The gage element shall conform to MIL-I-85352/3. The gage element shall consist of an indicato
36、r (pressure lbs) and actuating mechanism enclosed in a housing fitted with the male portion of a straight thru quick-disconnect coupling and lens. The gage element shall be capable of measuring pneumatic pressure from 50 to 600 psi for Size 1, from 10 to 150 psi for Size 2. The accuracy of the gage
37、element shall be 6 psi for Size 1, and 2 psi from 10 to 80 psi and 4 psi from 81 to 150 psi for Size 2, through their entire range at temperatures from -20 to +140F. The gage element shall be instantly removable and replaceable as a unit to the remote-controller body by use of a straight thru quick-
38、disconnect coupling. Both gage elements, Size 1 and Size 2, are to be interchangeable for use within the inflator assembly.SAE AS85352- 9 -3.8.1.1 Indicator: The indicator shall be manufactured from nonferrous metal or plastic. The indicator shall be calibrated from 50 to 600 psig in 10-pound increm
39、ents for Size 1, from 10 to 150 psig in 2-pound increments for Size 2. Adjacent graduations shall be spaced not less than .026 inch apart. Every fifth graduation shall be indicated by its value with numerals not less than .063 inch in height. The graduations and numerals shall be clearly and legibly
40、 marked in black on a white background. The graduations and markings are to be arranged on the indicator in such a manner to permit reading through the lens regardless of position of the indicator.3.8.1.2 Actuating mechanism: The indicator piston shall be pressure actuated, and balanced by the resis
41、tance of a constant rate (compression) spring. Internal stops shall be provided to control extreme positions of the piston to prevent overloading the spring. An external means of adjusting the mechanism shall be provided for correcting the indicator reading. The adjustment shall be capable of correc
42、ting an indicator error of from +20 psi to -50 psi at any scale reading between 100 psi and 580 psi, for Size 1, and from +10 psi to -10 psi at any scale reading between 20 psi and 140 psi for Size 2, while connected to a pneumatic pressure source. The adjustment shall contain a lock and seal to res
43、ist tempering.3.8.1.3 Housing: The gage element housing shall be of machined or extruded aluminum alloy with outside dimensions not exceeding 1-1/8 by 1-1/8 by 7-1/8 inches. A 3/4 inch diameter opening shall be provided in the housing to allow reading of the indicator. A wire marker or pointer shall
44、 be inserted at the opening midpoint to serve as a reference point to facilitate accurate reading. The opening shall be equipped with a non-breakable magnifying lens. The lens retainer or bezel shall not protrude more than 1/8 inch above the housing surface. The outer surface of the lens shall be re
45、cessed at least 1/16 inch below the surrounding surface. The housing for Size 1 gauge elements shall be anodized yellow (color 33481 of FED-STD-595) and Size 2 gage elements, blue (color 35177 of FED-STD-595) in accordance with MIL-A-8625.3.8.1.3.1 Quick-disconnect coupling: The gage element housing
46、 shall be equipped with the male portion of a straight thru quick-disconnect coupling conforming to the applicable dimensions of Figure 2. The overall dimensions of the housing with the disconnect fitting shall not exceed 8-3/4 inches.3.8.1.3.2 Lens: The reading port magnifying lens shall be of good
47、 commercial quality, non-breakable, and shall be free from distortion. The lens shall be retained in the housing in such a manner as to enable removal for cleaning without the use of special tools. The relationship of the lens, reading marker, and indicator shall be such as to enable accurate pressu
48、re readings. The magnification of indicator markings shall be at least 2 to 1.SAE AS85352- 10 -3.8.2 Remote-controller: The remote controller shall conform to MIL-I-85352/2. The body of the remote-controller shall be of machined or extruded aluminum alloy constructed to withstand a maximum working p
49、ressure of 1,500 psi and a minimum bursting pressure of 3,000 psi. The body shall be anodized to resist corrosion. The body shall be a maximum of 3-1/4 inches long by 3-1/4 inches high by 1-1/4 inches thick. The inlet port of the remote controller body shall be fitted with an AN912-2J bushing reducer. The body shall contain a lever operated inflator valve assembly and a bleed-off petcock. The attachment point for the gage element shall be equipped with the female portion of a straight thru quick-disconnect coupling to receive the gage element. This shall provide an airtig
