1、 AEROSPACE STANDARD HOSE ASSEMBLY, CONVOLUTED, POLYTETRAFLUOROETHYLENE, METALLIC REINFORCED CONDUCTIVE, FLARELESS, 90 TO 90 MA1638Copyright 2015 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any me
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3、ISSUED 1998-03REAFFIRMED2015-04THIRD ANGLE PROJECTION CUSTODIAN: G-3/G-3D FEDERAL SUPPLY CLASS MA1638 SHEET 1 OF 6 PROCUREMENT SPECIFICATION: MA620 /3/SAE Technical Standards Board Rules provide that: “This report ispublished by SAE toadvance thestate of technicalandengineering sciences. Theuse ofth
4、isreport is entirelyvoluntary, andits applicability and suitability forany particularuse,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay berevised,reaffirmed, stabilized, orcancelle
5、d. SAE invites yourwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/MA1638 RATIONALE MA1638 HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE FIVE-YEAR REVIEW POLICY. FIGURE 1 - HOSE ASSEMBLYFIGURE 2 - SPI
6、RAL ABRASION COVER /7/AEROSPACE STANDARD MA1638 SHEET 2 OF 6 HOSE ASSEMBLY, CONVOLUTED, POLYTETRAFLUOROETHYLENE, METALLIC REINFORCED CONDUCTIVE, FLARELESS, 90 TO 90 FIGURE 3 - FITTING ANGULAR ORIENTATION /17/TABLE 1 - ASSEMBLY DIMENSIONSHOSEASSY NO.AND SIZECODEHOSEASSEMBLYSIZEDNTHREAD TPER MA13704g
7、- 6gAMAXBGAGEBASICC /9/DRILLMINDMINDMAXE /10/ MAXWITHOUTSLEEVINGFHEX(REF)MA1638E 06 MJ12 x 1.25 31.5 7.5 3.4 18.0 19.8 14.0 14MA1638G 10 MJ14 x 1.5 41.4 9.5 6.5 24.4 26.2 17.3 17MA1638H 12 MJ18 x 1.5 47.0 13.5 8.8 28.3 30.1 21.8 22MA1638J 16 MJ22 x 1.5 55.7 17.5 10.9 35.0 36.8 24.1 27MA1638K 20 MJ27
8、 x 1.5 67.8 21.5 16.1 36.8 38.5 32.5 32MA1638M 25 MJ33 x 1.5 77.0 26.6 21.2 47.8 49.5 37.3 41MA1638N 32 MJ42 x 2 98.8 33.7 27.5 55.4 57.2 43.2 46MA1638P 40 MJ50 x 2 105.4 41.7 33.3 67.4 69.2 50.8 60TABLE 2 - ASSEMBLY LENGTH TOLERANCEHOSE ASSEMBLY LENGTH TOLERANCEUNDER 457 mm 3 mm457 TO 914 mm EXCLUS
9、IVE 7 mm914 TO 1270 mm EXCLUSIVE 13 mm1270 mm AND OVER 1%AEROSPACE STANDARD MA1638 SHEET 3 OF 6 HOSE ASSEMBLY, CONVOLUTED, POLYTETRAFLUOROETHYLENE, METALLIC REINFORCED CONDUCTIVE, FLARELESS, 90 TO 90 TABLE 3 - HOSE OR COVER OUTSIDE DIAMETERHOSEORCOVERCODEHOSE OR TYPE OFPROTECTIVE COVERHOSESIZE06HOSE
10、SIZE10HOSESIZE12HOSESIZE16HOSESIZE20HOSESIZE25HOSESIZE32HOSESIZE40UPPERTEMP.LIMITCNONE HOSE ONLY PER MA620B REF SPIRAL ABRASION /7/ 12.8 15.6 21.0 23.7 29.0 34.5 41.4 48.0 130H .8 mm INTEGRAL FIRESLEEVE /11/ 21.1 25.7 29.7 34.5 38.3 44.4 50.8 200N REF FIRESLEEVE SIL/FG (AS1072)/11/ /12/ /13/19.3 22.
11、1 26.2 28.7 34.8 41.4 47.5 54.1 200K .8 mm INTEGRAL ABRASION /8/(BRAIDED) POLYESTER12.7 16.0 21.3 23.4 28.8 34.9 40.6 47.5 145J .8 mm INTEGRAL FIRESLEEVE /14/ 17.4 20.2 25.3 27.7 33.0 38.9 200TABLE 4 - HOSE ASSEMBLY PHYSICAL CHARACTERISTICSHOSESIZEDNOPERATINGPRESSUREMAXkPaPROOFPRESSUREMINkPaBURSTPRE
12、SSUREROOM TEMPMINkPaBURSTPRESSUREHIGH TEMPMINkPaBEND RADIUSAT INSIDEOF BEND(HOSE ONLY)06 6900 13 800 27 600 19 300 3210 6900 13 800 27 600 19 300 5712 6900 13 800 27 600 19 300 7316 6900 12 410 24 820 17 240 7620 6900 12 410 24 820 17 240 9525 6900 12 410 24 820 17 240 12732 6900 12 410 24 820 17 24
13、0 15940 5170 10 340 20 680 14 480 191TABLE 5 - WEIGHTS (NOM)HOSESIZEDNHOSEONLYkg/mHOSE WITHSPIRALABRASIONCOVERCODE Bkg/mHOSE WITHINTEGRALFIRESLEEVECOVERCODE H & Jkg/mHOSE WITHTUBULARFIRESLEEVECOVERCODE Nkg/mHOSE WITHPOLYESTERABRASIONCOVERCODE Kkg/m90 ENDFITTINGkg EACHHOSE LENGTHCORRECTIONFACTOR - MM
14、 /16/9006 0.143 0.197 0.322 0.161 0.034 15.410 0.178 0.250 0.500 0.375 0.214 0.046 22.512 0.268 0.357 0.572 0.536 0.321 0.096 28.016 0.357 0.446 0.750 0.625 0.393 0.136 33.020 0.483 0.572 0.893 0.786 0.500 0.231 39.525 0.590 0.697 0.982 1.020 0.680 0.375 50.732 0.893 1.072 1.250 1.375 0.804 0.415 51
15、.340 1.072 1.268 1.464 1.911 1.036 0.713 58.0AEROSPACE STANDARD MA1638 SHEET 4 OF 6 HOSE ASSEMBLY, CONVOLUTED, POLYTETRAFLUOROETHYLENE, METALLIC REINFORCED CONDUCTIVE, FLARELESS, 90 TO 90 TABLE 6 - SLEEVE LENGTHHOSESIZEDNLENGTH(MILLIMETERS)0610 50 61216 65 62025 75 63240 90 6TABLE 7 - MINIMUM INSPEC
16、TION BALL SIZEFOR VERIFYING HOSE ASSEMBLY ID /10/HOSESIZEDN DIA MM06 2.8510 5.5312 7.4516 9.2820 13.7025 18.0332 23.4340 28.28AEROSPACE STANDARD MA1638 SHEET 5 OF 6 HOSE ASSEMBLY, CONVOLUTED, POLYTETRAFLUOROETHYLENE, METALLIC REINFORCED CONDUCTIVE, FLARELESS, 90 TO 90 NOTES:1. DN = NOMINAL TUBE OUTS
17、IDE DIAMETER.2. MATERIALS: HOSE AND FITTINGS PER MA620, TYPE II, CLASS 1 OR 2, AS SPECIFIED BY PART NUMBER.CODE B, SPIRAL ABRASION COVER, BLACK NYLON COIL PER AS1294CODE H AND J, INTEGRAL FIRESLEEVE, RED OR BROWN SILICONECODE N, TUBULAR FIRESLEEVE, FIBERGLASS SILICONE PER AS1072CODE K, INTEGRAL ABRA
18、SION SLEEVE, BRAIDED POLYESTER/3/ THIS HOSE ASSEMBLY STANDARD SHALL BE QUALIFIED IN ACCORDANCE WITH PROCUREMENT SPECIFICATION MA620. USERS OF THIS STANDARD ARE ADVISED TO CONTROL SOURCE APPROVAL(S) BY STANDARD PAGE SUPPLEMENT SHEET OR SIMILAR MEANS.4. MARKING SHALL BE PER MA620 ON A STAINLESS STEEL
19、BAND NOT OVER 25.0 mm WIDE OR ON THE END FITTING COLLAR. THE CHARACTERS SHALL BE A MINIMUM OF 1.5 mm HIGH. THE BAND SHALL BE SO DESIGNED AS TO REMAIN TIGHT ON THE HOSE TO PREVENT RELATIVE MOTION AND CHAFING. IT SHALL BE OF SUFFICIENT STRENGTH TO PREVENT REMOVAL BY HAND.5. CONSTRUCTION AND PERFORMANC
20、E PER MA620. FITTINGS SHALL BE PERMANENTLY ATTACHED TO HOSE./6/ LENGTH “L” IS A FOUR DIGIT NUMBER IN “MM”. LENGTH “L” IS MEASURED FROM “GAGE POINT” TO “GAGE POINT”. SEE TABLE 2 FOR LENGTH TOLERANCES./7/ SPIRAL ABRASION COVER WHEN ASSEMBLED IN THE STRAIGHT CONDITION ON THE HOSE SHALL HAVE AN AVERAGE
21、GAP BETWEEN SPIRALS NOT EXCEEDING 1.3 mm. DISPLACEMENT OF THE SPIRAL COVER, CAUSING A GREATER GAP, SHALL NOT BE CAUSE FOR REJECTION IF THE SPIRALS CAN BE REPOSITIONED TO MEET THE GAP REQUIREMENT. ENDS OF THE SPIRAL COVER SHALL BE TERMINATED WITH A LENGTH OFMIL-I-23053/5 BLACK POLYOLEFIN TUBING PER T
22、ABLE 6 AND FIGURE 2./8/ BRAIDED POLYESTER ABRASION COVER SHALL FORM AN INTEGRAL, PERMANENT PART OF THE HOSE AND SHALL TERMINATE A MAXIMUM OF 16.0 mm FROM THE END OF THE END FITTING COLLAR./9/ HOSE ASSEMBLY INSIDE DIAMETER SHALL BE VERIFIED BY PASSING THE DESIGNATED, OR LARGER, SPHERICAL BALL PER TAB
23、LE 7 THROUGH THE HOSE ASSEMBLY./10/ DISTANCE ACROSS CORNERS OF COUPLING NUT MAY EXCEED THIS DIMENSION./11/ ADD “AS1055 TYPE IIb CLASS B-S/P” OR “AS150 TYPE IIIbB” TO IDENTIFICATION MARKING TO SHOW LEVEL OF COMPLIANCE, “FIRE-PROOF” (15 min), WITH AS1055 OR AS150./12/ THE CUT ENDS OF THE FIRESLEEVE SH
24、ALL BE COATED WITH RTV SILICONE RUBBER, OR EQUIVALENT, PRIOR TO INSTALLATION TO PREVENT WICKING OF FLUID. THE FIRESLEEVE ENDS SHALL BE SECURED TO THE HOSE ASSEMBLY END FITTINGS WITH CORROSION RESISTANT STEEL BANDS. AFTER INSTALLATION, CRACKS OR VOIDS IN THE FIRESLEEVE, WHICH EXPOSE THE FIBERGLASS, S
25、HALL BE COATED WITH RTV SILICONE./13/ THE TABLE 3 SLEEVE DIAMETERS FOR AS1072 SLEEVE APPLY WHEN THE SLEEVE IS COMPRESSED, OR CLAMPED, TO CONTACT THE HOSE. IN THIS CASE A WRINKLE MAY OCCUR OVER APPROXIMATELY 10% OF THE SLEEVE CIRCUMFERENCE./14/ ADD “AS1055 TYPE IIa CLASS A-S/P” OR “AS150 TYPE IIIaA”
26、TO IDENTIFICATION MARKING TO SHOW LEVEL OF COMPLIANCE “FIRE RESISTANT” (5 min) WITH AS1055 OR AS150.15. STANDARD COUPLING NUTS SHALL BE IN ACCORDANCE WITH MA2072 OR MA2047. NONSTANDARD COUPLING NUTS MAY BE USED BUT SHALL COMPLY WITH THE REQUIREMENT (b) OF MA2014 FOR NONSTANDARD NUTS AND SHALL BE RET
27、AINED BY THE END FITTING./16/ FOR EACH END FITTING, DEDUCT APPROPRIATE LENGTH FACTOR FROM HOSE LENGTH TO DETERMINE ASSEMBLY WEIGHT.AEROSPACE STANDARD MA1638 SHEET 6 OF 6 HOSE ASSEMBLY, CONVOLUTED, POLYTETRAFLUOROETHYLENE, METALLIC REINFORCED CONDUCTIVE, FLARELESS, 90 TO 90 NOTES (CONTINUED):/17/ THE
28、 FITTING ORIENTATION DASH NUMBER IS A THREE DIGIT NUMBER DEFINING THE RELATIVE POSITION OF THE END FITTING IN 1 INCREMENTS (EXAMPLE 090 = 90). FITTING ORIENTATION SHALL BE MEASURED COUNTERCLOCKWISE FROM THE NEAREST END FITTING, WHICH SHALL BE IN THE RELATIVE 000 POSITION (SEE FIGURE 3). WHEN END FITTINGS ARE POINTED IN THE SAME DIRECTION, THE DASH NUMBER SHALL BE000.18. DIMENSIONS ARE IN MILLIMETERS UNLESS OTHERWISE SPECIFIED.19.
