1、Copyright 2004 SAE InternationalAll rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, orotherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT
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3、ofthis reportisentirelyvoluntary, andits applicabilityand suitabilityfor any particularuse,including any patentinfringement arising therefrom,isthe sole responsibility of the user.”SAE reviews each technical reportatleastevery five years atwhich timeitmay bereaffirmed,revised, or cancelled.SAE invit
4、es yourwritten comments and suggestions.SHEET 1 OF 5AS4576REV.ATHIRD ANGLE PROJECTIONAEROSPACE STANDARDAS4576REV. AISSUED 1997-11 REVISED 2001-01 REAFFIRMED 2004-06(R) HOSE ASSEMBLY, PTFE, PARA-ARAMID REINFORCED,STANDARD DUTY, 3000 PSI, 275 F, TITANIUMFITTINGS, BEAM SEAL, STRAIGHT TO 90CUSTODIAN: SA
5、E G-3/G-3D PROCUREMENT SPECIFICATION: AS1975 /2/FEDERAL SUPPLY CLASS 4720FIGURE 1 - ENLARGED VIEW - STR END FITTINGFIGURE 2 - ENLARGED VIEW - 90 END FITTINGCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS
6、-,-HOSE ASSEMBLY, PTFE, PARA-ARAMID REINFORCED,STANDARD DUTY, 3000 PSI, 275 F, TITANIUMFITTINGS, BEAM SEAL, STRAIGHT TO 90AEROSPACE STANDARDAS4576SHEET 2 OF 5AS4576REV.AREV. A(R)TABLE1 - ASSEMBLY DIMENSIONSHOSEASSEMBLYNO. & SIZECODE /22/HOSESIZE(REF)/20/FITTINGTYPE(REF)THREAD TPER AS8879(REF)HOSEIDM
7、INA1MAXA2MAXB /7/MIN FTGBORE DIAAFTERASSEMBLYCHEX(REF)D /8/DIA MAXWITHOUTSLEEVINGEMINEMAXSPHERICALBALL SIZEFORDETERMININGMINIMUMHOSEASSEMBLY ID /7/INSTRAIGHTFITTINGSPHERICALBALLSIZEFORDETERMININGMINIMUMHOSEASSEMBLY ID/7/INELBOWFITTINGAS4576E.250-AS4576E.250S.4375-24UNJS-3B.2121.6301.880.135.56.69.57
8、6.701.122.115AS4576E.250E.5625-20UNJS-3B.2121.6951.925.135.69.69.608.733.122.115AS4576G.375R.4375-24UNJS-3B.2981.7702.180.135.56.80.576.701.122.115AS4576G.375S.5625-20UNJS-3B.2981.8802.180.240.69.80.610.735.216.204AS4576G.375E.7188-20UNJS-3B.2981.9602.265.240.88.80.693.818.216.204AS4576H.500R.5625-2
9、0UNJS-3B.3912.1002.530.240.69.97.610.735.216.204AS4576H.500S.7188-20UNJS-3B.3912.1002.530.340.88.97.693.818.306.289AS4576H.500E.8438-18UNJS-3B.3912.6202.780.3401.00.97.834.959.306.289AS4576J.625R.7188-20UNJS-3B.4852.6903.375.340.881.15.776.901.306.289AS4576J.625S.8438-18UNJS-3B.4852.6903.375.4101.00
10、1.15.834.959.369.349AS4576J.625E1.000-16UNJ-3B.4852.7503.515.4101.131.15.9881.113.369.349AS4576K.750R.8438-18UNJS-3B.6023.2403.940.4101.001.38.9391.064.369.349AS4576K.750S1.000-16UNJ-3B.6023.2403.940.5101.131.38.9881.113.459.434AS4576K.750E1.250-14UNJS-3B.6023.3204.000.5101.501.381.1671.292.459.434A
11、S4576M1.000R1.000-16UNJ-3B.8523.8104.485.5101.131.661.1291.254.459.434AS4576M1.000S1.250-14UNJS-3B.8523.8104.485.7601.501.661.1671.292.684.646Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-HOSE ASSEMB
12、LY, PTFE, PARA-ARAMID REINFORCED,STANDARD DUTY, 3000 PSI, 275 F, TITANIUMFITTINGS, BEAM SEAL, STRAIGHT TO 90AEROSPACE STANDARDAS4576SHEET 3 OF 5AS4576REV.AREV. A(R)TABLE 2 - HOSE OR SLEEVE OUTSIDE DIAMETERSLEEVECODE /22/ SLEEVE MATERIALTEMPLIMITF TOLERANCEHOSESIZE/10/.250HOSESIZE/10/.375HOSESIZE/10/
13、.500HOSESIZE/10/.625HOSESIZE/10/.750HOSESIZE/10/1.000- (-) INDICATES BRAIDED HOSEONLY PER AS1975275 MAXMIN.465.405.555.495.710.650.920.8501.075.9951.3651.285A FIRESLEEVE (AS1072 SIL - FG)(5 min) /11/ /12/275 MAXMIN.840.658.970.7881.150.9681.3801.1981.5901.3181.7501.568B FIRESLEEVE INTEGRAL SILICONE(
14、5 min) /13/275 MAXMINC PROTECTIVE SLEEVESHRINK-ON (POLYOLEFIN AS1073CODE B)275 MAXMIN.520.450.620.550.795.7251.000.9201.1701.0601.4601.350TABLE 3 - ASSEMBLY LENGTH TOLERANCESHOSE ASSEMBLY LENGTH TOLERANCEUNDER 18 in .125 in18 TO 36 in EXCLUSIVE .250 in36 TO 50 in EXCLUSIVE .500 in50 in AND OVER 1%TA
15、BLE 4 - HOSE AND FITTING WEIGHTSHOSEORSLEEVECODE /22/HOSE OR TYPESLEEVE UNITSHOSESIZE.250HOSESIZE.375HOSESIZE.500HOSESIZE.625HOSESIZE.750HOSESIZE1.000- BRAIDED HOSE ONLY PER AS1975 LB/IN (MAX) .006 .008 .012 .020 .025 .040A FIRESLEEVE AS1072 (5 minPER AS1055) /15/LB/IN .012 .017 .018 .028 .030 .037B
16、 FIRESLEEVE INTEGRAL WITHHOSE (5 min PER AS1055) /15/LB/INC PROTECTIVE SLEEVE SHRINK-ON(POLYOLEFIN AS1073, CODE B)LB/IN .001 .001 .001 .002 .002 .003NONE FIRESLEEVE CLAMP LB/EA (REF) .020 .020 .021 .021 .025 .025NONE FITTING END (STRAIGHT) TITANIUM /16/ RSELB/EA (REF) -.044.062.081.085.121.170.194.2
17、77.210.226.309.361.369.426.452.471-NONE FITTING END (90) TITANIUM /16/ RSELB/EA (REF) -.067.086.110.121.154.167.206.283.277.290.381.485.490.608.535.627-Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-H
18、OSE ASSEMBLY, PTFE, PARA-ARAMID REINFORCED,STANDARD DUTY, 3000 PSI, 275 F, TITANIUMFITTINGS, BEAM SEAL, STRAIGHT TO 90AEROSPACE STANDARDAS4576SHEET 4 OF 5AS4576REV.AREV. A(R)NOTES:1. MATERIALS:a. HOSE AND FITTINGS - PER AS1975b. SLEEVES - SEE APPLICABLE STANDARDS, TABLE 2/2/ THIS PRODUCT SHALL BE QU
19、ALIFIED IN ACCORDANCE WITH PROCUREMENT SPECIFICATION AS1975 CLASS 3000. USERS OF THIS STANDARD SHALL PROCURE THIS PRODUCT FROM ACCREDITED MANUFACTURER(S), OR THEIR ACCREDITED DISTRIBUTOR(S), AS LISTED IN THE PERFORMANCE REVIEW INSTITUTE (PRI) QUALIFIED PRODUCTS LIST PRI-QPL-AS1975 CLASS 3000 FOR THI
20、S STANDARD. CHANGE-OVER FROM USER-QPL TO PRI-QPL SHALL BE IN ACCORDANCE WITH AS1975 REVISION C OR HIGHER AND BE COMPLETED WITHIN SIX MONTHS FROM THE DATE OF ISSUE OF THIS STANDARD.3. CONSTRUCTION AND PERFORMANCE PER AS1975 CLASS 3000. FITTINGS SHALL BE PERMANENTLY ATTACHED TO THE HOSE.4. OPERATING C
21、HARACTERISTICS PER AS1975./5/ MARKING: MARKING SHALL BE PER AS1975 ON A STAINLESS STEEL BAND NOT OVER 1.0 in WIDE OR ON THE COLLAR. THE CHARACTERS SHALL BE A MINIMUM OF .06 in HIGH. THE BAND SHALL BE SO DESIGNED AS TO REMAIN TIGHT ON THE HOSE TO PREVENT RELATIVE MOVEMENT AND RESULTANT CHAFING. IT SH
22、ALL BE OF SUFFICIENT STRENGTH TO PREVENT REMOVAL BY HAND. HOSE ASSEMBLY DATE AND “PT” SYMBOL SHALL BE PERMANENTLY MARKED ON THE BAND OR ON AN END FITTING OR A FIRESLEEVE CLAMP. MARKING BAND SHALL BE COVERED WITH TRANSPARENT POLYOLEFIN SHRINK SLEEVE PER AS1073 CODE A./6/ LENGTH “L” IS A FOUR DIGIT NU
23、MBER OF WHICH THE FIRST THREE DIGITS DESCRIBE THE HOSE ASSEMBLY LENGTH IN WHOLE INCHES AND THE FOURTH DIGIT THE FRACTIONS OF AN INCH IN EIGHTHS. LENGTH “L” IS MEASURED FROM THE OUTER CORNER OF THE SEALING SURFACE TO OUTER CORNER OF SEALING SURFACE AS SHOWN IN FIGURE 1. FOR LENGTH TOLERANCES SEE TABL
24、E 3./7/ A TRUE CIRCULAR CROSS SECTION IS NOT REQUIRED THROUGH THE FITTING ID. HOWEVER, THE APPLICABLE MINIMUM BALL DIAMETER LISTED IN TABLE 1 MUST BE CAPABLE OF PASSING THROUGH THE HOSE ASSEMBLY./8/ DISTANCE ACROSS CORNERS OF THE HEX MAY EXCEED THIS DIMENSION./9/ STANDARD COUPLING NUTS SHALL MATE WI
25、TH MIL-F-85421/1 OR AS4207 FITTING ENDS. NONSTANDARD COUPLING NUTS MAY BE USED PROVIDED THEY ARE FUNCTIONALLY EQUIVALENT AND PROVIDED THEY CANNOT BE REMOVED FROM THE FITTING. NUTS SHALL MEET THE TORQUE TEST REQUIREMENTS PER AS1975./10/ DIAMETERS ARE LISTED FOR CLAMP SELECTION. TUBULAR SLEEVES MAY NO
26、T BE A PERFECT ROUND AND SHALL BE MEASURED WITH A DIAMETER TAPE RULE (OFTEN REFERRED TO AS A PI-TAPE)./11/ THE TABLE 2 SLEEVE DIAMETERS FOR AS1072 SLEEVES 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 CIRCUMF
27、ERENCE./12/ THE CUT ENDS OF THE FIRESLEEVE SHALL BE COATED WITH RTV SILICONE RUBBER PRIOR TO INSTALLATION TO PREVENT WICKING OF FLUIDS. 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 W
28、HICH EXPOSE FIBERGLASS SHALL BE COATED WITH RTV SILICONE RUBBER./13/ THE ENDS OF THE INTEGRAL FIRESLEEVE SHALL BE COVERED WITH SILICONE EXTENDING OVER THE END FITTING COLLAR.14. ADD “AS1055 TYPE IIb CLASS A-S/P” OR “AS150 TYPE XIII” TO IDENTIFICATION MARKING TO SHOW LEVEL OF COMPLIANCE, “FIRE RESIST
29、ANT” 275 F (5 min), WITH AS1055 OR AS150./15/ WHEN FIRESLEEVES ARE REQUIRED, WEIGHT LIMITS SHALL BE DEFINED BY THE PROCURING ACTIVITY./16/ TITANIUM PARTS MAY BE REPLACED WITH STAINLESS STEEL IF MAXIMUM WEIGHT FOR FITTING IS NOT EXCEEDED AND THE STAINLESS STEEL COMPONENTS HAVE BEEN PREVIOUSLY QUALIFI
30、ED.17. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994./18/ SAFETY WIRE HOLES LOCATION AND DIAMETER PER AS1043 CODED AS FOLLOWS:a. U = TWO HOLES 180 APARTb. W = THREE HOLES 120 APART19. THIS PART STANDARD TAKES PRECEDENCE IN CASES OF CONFLICT.Copyright SAE International Provided by IHS under licen
31、se with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-HOSE ASSEMBLY, PTFE, PARA-ARAMID REINFORCED,STANDARD DUTY, 3000 PSI, 275 F, TITANIUMFITTINGS, BEAM SEAL, STRAIGHT TO 90AEROSPACE STANDARDAS4576SHEET 5 OF 5AS4576REV.AREV. A(R)/20/ JUMP SIZE CODE EXPLANATION:a
32、. R - STEP DOWN 1 STANDARD LETTER SIZE PER TABLE 1 (REDUCER)b. S - HOSE SIZEc. E - STEP UP 1 STANDARD LETTER SIZE PER TABLE 1 (EXPANDER)21. THE SHRINK ON POLYOLEFIN SLEEVE SHALL COVER THE ENTIRE HOSE AND A MINIMUM OF 50% OF THE COLLARS ON BOTH ENDS OF THE ASSEMBLY./22/ EXAMPLE OF PART NUMBER:23. ALL
33、 ASSEMBLIES PROCURED TO THIS STANDARD PRIOR TO REVISION A CAN BE UTILIZED FOR EITHER CLASS 3000 OR CLASS 4000 SYSTEM APPLICATIONS. ALL FUTURE PROCUREMENTS TO THIS STANDARD SHALL BE FOR CLASS 3000 ONLY. REFER TO AS4588 FOR PROCUREMENT OF CLASS 4000 HOSE ASSEMBLIES.24. THE CHANGE BAR ( l ) LOCATED IN
34、THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER IN LOCATING AREAS WHERE TECHNICAL REVISIONS, NOT EDITORIAL CHANGES, HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-
