1、MIL-C-3370 47 W 77779Ob OLI3b5b5 W 7 MIL-C -8 3 390 (USAF) 1 September 1972 MILITARY SPECIFICATION CONNECTOR, HOSE, QUICK-ACTING, MALE, ANTI-G GARMENT 1. SCOPE 1.1 This specification covers one type of quick-acting, male connector for the hose of an anti-g garment, The connector is designated MXU-63
2、6/P. 2 APPLICABLE DOCUMENTS 2.1 The following documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent spec i f Fed her ein. SPECIFICATIONS Federal QQ-S-764 Military MIL -H- 7 7 J MIL-H-6875 MIL-H- 26 385 STANDARDS Mili
3、tary MIL-STD- 100 MIL- STD *= 1.0 5 MIL-STD -130 MIL - STD - 14 3 MIL-STD -8 3 1 MIL-STD-889 MS27755 DRAWING Air Force 55B3674 Steel Bar, Corrosion Resisting, Free Machining Hose, Rubber, Plastic Fabric or Metal (Including Tubing) ; and Fittings, Nozzle and Strainers, Packaging of Heat Treatment of
4、Steels (Aircraft Practices, Process for) Hose, Oxygen and Pressurization, Ozone Resistant Engineering Drawing Practices Sampling Procedures and Tables or Inspection by Attributes Identification Marking of US Military Property Standards and Specifications, Order of Precedence for the Selection of Tes
5、t Reports, Preparation of Dissimilar Metals Connector, Hose Quick Disconnect, Female, Anti “G“ Suit Hose, Quick Disconnect Anti-G Suit FSC 4730 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-83370 47 W 777770b 043656b T MIL-C-83390 - (USAF). .
6、 (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publication. The following document forms a part of this spec
7、ifi- cation to the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. STANDARD American National Standards Institute (ANSI) - ANSI (formerly ASA) B46.1 Surface Texture (Copies of this standard may be obtained f
8、rom the American National Standards Institute, 10 East 40th Street, New York, New York 10016.) (Technical society and technical association specifications and standards are generally available for reference from libraries and are also distributed among technical groups and using federal agencies .)
9、3. REQUIREMENTS 3.1 Preproduction. This specification provides for preproduction testing (see 4.4 and 6.2). 3.2 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. 3.3 Ma
10、terials. Materials shall conform to applicable specifications and standards and shall be as specified herein. Materials that are not covered by specifications and that are not specifically described herein shall be the best quality and the lightest practicable weight and shall have been tested to as
11、- sure suitability for the intended use. 3.3.1 Metals. Metals not specified herein shall be corrosion resistant or suitably treated to resist corrosion due to fuels, salt spray, or atmospheric conditions likely to be met in storage or normal use. fabricate the nose piece of the connector shall be co
12、rrosion-resistant steel conforming to type 416, condition A of QQ-S-764. All metal surfaces shall be finished to 125AA in accordance with ANSI (formerly ASA) B46.1. The nose piece shall be heat treated to Rockwell hardness C39 - C41 in accordance with MIL-H-6875. All burrs shall be removed from the
13、metals. The metal used to 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-3370 47 997770b 043b5b7 1 W s i MIL-C-83390 (OSAF) : 3.3.1.1 Dissimilar metals. Dissimilar metals shall not be used in contact with each other. Dissimilar metals are de
14、fined in MIL-STD-889. 3.3.2 Protective treatment. Materials that will be subject to deterioration during service usage shall be protected against deterioration in a way that will not affect compliance with the performance requirements specified herein. Protective coatings that will crack, chip, or s
15、cale with age or extremes of environmental conditions shall not be used. 3.4 in accordance with figure 1, to be installed on-an anti-g garment to provide a quick connection and a quick disconnection of the anti-g garment to and from an aircraft-installed pressure source. When the connector is joined
16、 to a female connector conforming to MS27755, a plunger shall open a water check valve and allow free flow of air to and from the anti-g garment. After the connectors are disconnected from-each other, the water check valve shall close and prevent water from entering the anti-g garment while submerge
17、d in water. The connector shall also have a pressure bleed provision that will insure excess pressure will not remain in the anti-g garment when the connector is separated from the pressure source in an emergency. a v Design and construction. The connector shall be designed and constructed, 3.5 Perf
18、ormance 3.5.1 Inflation and deflation. The connector shall not restrict normal inflation of the anti-g garment to 8 pounds per square inch (psi) within 3 seconds. in 4 seconds while the anti-g garment is connected to a female connector conform- ing to MS27755. The connector shall not restrict deflat
19、ion of the anti-g garment with- o 3.5,2 Emergency pressure relief. When an anti-g garment, pressurized to 8 psi, is disconnected from the air pressure source, the connector shall pro- vide for deflation of the anti-g garment to 1.5 psi internal pressure within 4 seconds and shall provide for continu
20、ed deflation of the anti-g garment to 0.5 (plus 0.25 or minus O) psi. pressure of not less than 0.5 psi for a 4-hour period. 3.5.3 female connector conforming to MS27.755 shall be not less than 5 pounds nor more than 20 pounds. The anti-g garment shall maintain the internal Separation force, The for
21、ce required to separate the connector from a 3,5.4 Air leakage. The connector shall not leak air and shall not separate from the female connector when the joined connectors are submerged in water and subjected to an internal air pressure of 40 psi for 60 seconds. 3 Provided by IHSNot for ResaleNo re
22、production or networking permitted without license from IHS-,-,-MIL-C-83370 q7 m 9777906 Oq365b 3 m . MIL-C- 83390 (US radii of fillets; marking of parts and assemblies; thoroughness of welding, brazing, painting, swaging, soldering, and p0t:ti.n.g; alignment of parts; and tightness of assembly scre
23、ws and bolts. Operation of the connector after assembly shall not be dependent upon selective fit of any or all parts. 4. QUALITY ASSURANCE: PROVISIONS 4.1 Res, msibility for inspection. Unless otherwise specified in the contract or purcliasc order, the supplier is responsible for the performance of
24、 all in- spection rquiremetits as specified herein. Except as otherwise specified in the contrxct: or order, the supplier may use his own os any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserve
25、s 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. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-3370
26、47 777770b OV3b570 L MIL-C - 8 3 3 90 (USAF) 4.2 Classification of inspection. The examinations and the tests required by this specification are classified as follows: (a) Preproduction tests (b) Quality conformance tests. I 4.3 Test conditions 4.3.1 Atmospheric conditions. Unless otherwise specifie
27、d herein, all tests required by this specification shall be made at an atmospheric pressure of 30 (plus or minus 2) inches of mercury, at a temperature of plus 77 (plus or minus 10 degrees) Fahrenheit, and at a relative humidity of 80 percent or less. Where tests are made with atmospheric pressure o
28、r temperature substantially different from these values, proper allowance shall be made for the change in instrument readings. 4.3.2 Test equipment. The female connector required for the tests specified herein shall conform to MS27755. specified herein shall be a CSU-l2/P anti-g garment in size larg
29、e. The anti-g garment required for the tests i 404 described under 4.6. production tests. that are representative of the materials, the components, the construction, and the workmanship to be used during the production of the connectors. preproduction tests have been completed, the tested preproduct
30、ion samples shall be submitted. to the procuring activity (see 6.2). 1423 and by the procuring activity (see 6.2), one copy of a preproduction test report, in the format specified in MIL-STD-831, shall be submitted with the tested preproduction samples. commenced prior to the approval of the preprod
31、uction samples by the procuring activity. Approval or waiver of the preproduction samples shall not preclude the requirements for the quality conformance tests. 4.5 guality contormance tests. The quality conformance tests shall consist of the following: Preproduction tests, The preproduction tests s
32、hall consist of all tests The preproduction samples shall be subjected to the pre- The preproduction samples shall consist of two connectors After the When specified on DD Form Production of the connectors shall not be (a) Individual test (b) Sampling tests. 4.5.1 Individual test Each connector shal
33、l be subjected to the examination of rnaterials and workmanship described in 4.6.1.1. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-83390 (USAF) 4.5.2 Sampling tests. Samples shall be selected in accordance with MIL-STD-105 and subjected to
34、 the sampling tests listed in table I and described herein. number of sample units (sample size) and the acceptance criteria for the sampling tests shall be as specified in table I. The sample unit for the saqling tests shall be one connector. me TABLE I. Sampling Tests Sampling Test and Par a;raph
35、Re fer em e Examination of marking (see 4.6.1.2) Examination of dimensions (see 4.6.1.3) Inflation and deflation (see 4.6.2) Emergency pressure relief (see L.6.3) Separation force (see 4.6.4) Air leakage (see 4,6,5) Environmental exposure (see 4.6.6.1 and 4.6.6.2) Reliabili ty (see 4.6.7) - Cnspecti
36、on Level of MIL-STD-105 Eor Selection of Sample Size it CL temperature of niinus CO (plus C)L- niiiiiis 5j Jcgices Fahrenheit for a 4-hour ptr-i;d. At the end of the 4-hour period, tlic i-oiiriector shall !,e perniitted to riturn to room temperature and then sliali bc sutijccted to - and shali pass
37、the tests specified in 4.6.2 and L.6.4. 4.6.7 Xeliability. The connector shall be subjected to the environnicrita1 exposure tests specified iu S.b.6.1 and A.6.6 2, in sequence, except that the connector shall not be subjected to the tests specified in 4.6,2 and 4.0.4 after each envircnmental exposur
38、e test. After the coniier:tor has been subjected to the hc. expcisures, the cuimector shall 3e subjected to 720 .iycles o connec- tion to and disconnection Lrm a Eemale connector ccnfornins t XS27755. d cycle shall consist of a complete connection and disconnection. -:lie connection shall consist o
39、the following: Ihe connectors shall be firmly joined. The internal water check valve shall be open, permitting Eree flow of air through the joined connectors. the connectors from each other. After the 700th cycle, the connector shall be subjected to and shall pass the tests specified in 4.6.2 throug
40、h 4.6.5, to determine if failure has occurred. A connector failing to pass any of the tests specified herein shall have failed the reliability test, No parts shall be replaced during reliability testing. 3Fsconnection shall consist of a complete separation of 5. PREPARATION FOR DELIVERY 5.1 Preserva
41、tion and packaging. Preservation and packaging shall be level A or C of MIL-H-775 as specified (see 6.2). 5.2 Packing. Packing shall be level A, B, or C of MIL-H-775 as specified (see 6.2). 6, NOTES 6.1. Intended use. The connector covered by this specification is intended to be installed on an anti
42、-g garment and to be used with a female connector that conforms to E27755 to provide a connection between the hose of thc anti-g garment and an aircraft-ins talled air pressure source, 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Preparing activity: Air Force - 11 Project No. 4730-F008 U. S. GOVERNMENT PRINTING OFFICE: 1972 -714-539/2319 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
