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
2、ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA)Fax: 724-776-0790 Email: custsvcsae.org SAE WEB ADDRESS: http:/www.sae.orgSAE Technical Standards Board Rules providethat: “This report is published by SAE to advancethe state oftechnical and engineering sciences.Theuse
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 5AS21919THIRD ANGLE PROJECTIONAEROSPACE STANDARDAS21919ISSUED 2000-09 REAFFIRMED 2004-06CLAMP, LOOP TYPE, CUSHIONED SUPPORTCUSTODIAN: SAE COMMITTEE G-3/G-3E PROCUREMENT SPECIFICATION: NONEFEDERAL SUPPLY CLASS 5340FIGURE 1 - CLAMPCopyright SAE Intern
5、ational Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-CLAMP, LOOP TYPE, CUSHIONED SUPPORTAEROSPACE STANDARDAS21919SHEET 2 OF 5AS21919TABLE 1 - SIZE CODE AND DIMENSIONSSIZECODE/16/TUBEDIAOD(REF)D.015ALUMALLOYE.015ALUMALLOYTCRESE
6、.015CREST01 .062 .062 .436 .020 .436 .02002 .125 .125 .457 .032 .457 .03203 .188 .188 .498 .032 .498 .03204 .250 .250 .529 .032 .529 .03205 .313 .313 .560 .032 .560 .03206 .375 .375 .592 .032 .592 .03207 .438 .438 .623 .032 .623 .03208 .500 .500 .654 .032 .654 .03209 .563 .563 .752 .050 .749 .03210
7、.625 .625 .783 .050 .780 .03211 .688 .688 .814 .050 .811 .03212 .750 .750 .845 .050 .842 .03213 .813 .813 .877 .050 .858 .03214 .875 .875 .908 .050 .889 .03215 .938 .938 .939 .050 .920 .03216 1.000 1.000 .970 .050 .951 .03217 1.063 1.063 1.002 .050 .983 .03218 1.125 1.125 1.062 .062 1.030 .03219 1.1
8、88 1.188 1.093 .062 1.061 .03220 1.250 1.250 1.124 .062 1.092 .03221 1.313 1.313 1.156 .062 1.124 .03222 1.375 1.375 1.187 .062 1.155 .03223 1.438 1.438 1.218 .062 1.186 .03224 1.500 1.500 1.249 .062 1.217 .03225 1.563 1.563 1.281 .062 1.259 .03226 1.625 1.625 1.312 .062 1.280 .03227 1.688 1.344 .06
9、2 1.312 .03228 1.750 1.750 1.374 .062 1.342 .03229 1.813 1.406 .062 1.374 .03230 1.875 1.875 1.437 .062 1.405 .03231 1.938 1.468 .062 1.444 .04032 2.000 2.000 1.499 .062 1.475 .04033 2.062 1.531 .062 1.507 .04034 2.125 2.125 1.562 .062 1.538 .04035 2.188 1.594 .062 1.570 .04036 2.250 2.250 1.624 .06
10、2 1.600 .04037 2.312 1.655 .062 1.631 .04038 2.375 2.375 1.687 .062 1.663 .04040 2.500 2.500 1.752 .062 1.728 .04042 2.625 1.812 .062 1.788 .04043 2.688 1.844 .062 1.820 .04044 2.750 2.750 1.875 .062 1.851 .04045 2.812 1.906 .062 1.882 .04046 2.875 1.937 .062 1.913 .04048 3.000 3.000 2.000 .062 1.97
11、6 .04050 3.125 2.062 .062 2.038 .04052 3.250 3.250 2.125 .062 2.101 .04054 3.375 2.187 .062 2.163 .04056 3.500 3.500 2.250 .062 2.226 .04058 3.625 2.312 .062 2.288 .04064 4.000 4.000 2.500 .062 2.476 .04066 4.125 2.562 .062 2.538 .040Copyright SAE International Provided by IHS under license with SAE
12、Not for ResaleNo reproduction or networking permitted without license from IHS-,-CLAMP, LOOP TYPE, CUSHIONED SUPPORTAEROSPACE STANDARDAS21919SHEET 3 OF 5AS21919NOTES:1. MATERIAL:BAND:a. CODE LETTER C - TYPE 321 CORROSION RESISTANT STEEL PER AMS 5510b. CODE LETTER D - 2024-0 ALUMINUM ALLOY PER AMS-QQ
13、-A-250/5CUSHION:a. CODE LETTER E - ETHYLENE PROPYLENE PER MIL-C-85052/2b. CODE LETTER F - NITRILE PER MIL-C-85052/1c. CODE LETTER G - CHLOROPRENE PER AMS 3209 AND OZONE RESISTANCE REQUIREMENTS PER NOTE 11d. CODE LETTER H - SILICONE PER AMS 3310e. CODE LETTER J - FLUOROSILICONE PER MIL-R-25988, TYPE
14、II, CLASS 1, GRADE 602. HEAT TREATMENT:a. CODE LETTER D - HEAT TREAT TO T42 TEMPER IN ACCORDANCE WITH AMS-H-60883. FINISH:a. CODE LETTER C - PASSIVATE PER AMS-QQ-P-35b. CODE LETTER D - CHEMICAL CONVERSION COATING PER MIL-C-5541, CLASS 1A/4/ MATERIAL COMBINATION CODES: LETTERS INDICATE BAND AND CUSHI
15、ON MATERIAL CODES. DO NOT SPECIFY BAND/CUSHION COMBINATIONS NOT LISTED. MAXIMUM RECOMMENDED TEMPERATURE IS INDICATED IN PARENTHESIS.a. DE = ALUMINUM ALLOY BAND WITH ETHYLENE PROPYLENE CUSHION (212 F)b. DF = ALUMINUM ALLOY BAND WITH NITRILE CUSHION (275 F)c. DG = ALUMINUM ALLOY BAND WITH CHLOROPRENE
16、CUSHION (212 F)d. CE = CRES BAND WITH ETHYLENE PROPYLENE CUSHION (275 F)e. CF = CRES BAND WITH NITRILE CUSHION (275 F)f. CG = CRES BAND WITH CHLOROPRENE CUSHION (212 F)g. CH = CRES BAND WITH SILICONE CUSHION (400 F)h. CJ = CRES BAND WITH FLUOROSILICONE CUSHION (392 F)/5/ STIFFENING BEAD SHALL BE REQ
17、UIRED ON SIZE -06 THRU -24. ALL RADII ON THE STIFFENING BEAD SHALL BE SMOOTH AND BLEND. NO SHARP TOOL MARKS ARE ALLOWED.6. IDENTIFICATION: MARK PART NUMBER AND MANUFACTURERS NAME, TRADEMARK OR CAGE CODE PER AS478-2A1. DO NOT MARK IN RADIUS.TABLE 2 - DIMENSIONSSIZE CODE SRANGE B B G G R +.020/16/ MIN
18、 MAX MIN MAX .016 .00001 /8/ /8/ .062 .078 .062 .04002 - 03 .046 .110 .062 .078 .062 .04004 - 08 .093 .125 .062 .078 .062 .04009 - 10 .093 .125 .062 .078 .109 .04011 - 17 .155 .312 .062 .078 .109 .06018 - 30 .155 .312 .094 .125 .125 .06031 - 48 .155 .312 .125 .156 .125 .06050 - 66 /8/ /8/ .125 .156
19、.125 .060Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-CLAMP, LOOP TYPE, CUSHIONED SUPPORTAEROSPACE STANDARDAS21919SHEET 4 OF 5AS219197. CUSHION APPLICATION AND COLOR INFORMATION:a. CODE LETTER E - F
20、OR USE IN AREAS EXPOSED TO PHOSPHATE ESTER HYDRAULIC FLUID. EXCELLENT OZONE RESISTANCE. NOT RESISTANT TO PETROLEUM BASED FLUIDS. COLOR SHALL BE PURPLE.b. CODE LETTER F - FOR USE PRIMARILY IN FUEL IMMERSION AND FUEL VAPORS. GOOD OZONE RESISTANCE. NOT RESISTANT TO PHOSPHATE ESTER BASED FLUIDS. NOT FOR
21、 USE ON TITANIUM TUBING. COLOR SHALL BE SOLID YELLOW.c. CODE LETTER G - FOR GENERAL PURPOSE USE IN AREAS EXPOSED TO PETROLEUM BASED HYDRAULIC FLUIDS AND OCCASIONAL FUEL SPLASH. EXCELLENT OZONE RESISTANCE. NOT RESISTANT TO PHOSPHATE ESTER BASED FLUIDS. NOT FOR USE ON TITANIUM TUBING. COLOR SHALL BE B
22、LACK WITH A BLUE IDENTIFIER. SEE NOTE 10.d. CODE LETTER H - FOR ELEVATED TEMPERATURE USAGE IN AREAS EXPOSED TO PHOSPHATE ESTER BASED FLUID AND OTHER SYNTHETIC FLUIDS. UNAFFECTED BY OZONE. NOT RESISTANT TO PETROLEUM BASED FLUIDS. COLOR SHALL BE NATURAL WHITE.e. CODE LETTER J - FOR ELEVATED TEMPERATUR
23、E USAGE IN AREAS EXPOSED TO PETROLEUM BASED FLUIDS. UNAFFECTED BY OZONE. NOT RESISTANT TO PHOSPHASE ESTER BASED FLUIDS. COLOR SHALL BE SOLID BLUE./8/ CODE LETTER “W” INDICATES WEDGE TYPE CUSHION. WEDGE IS MANDATORY FOR -02 THRU -48 SIZE CLAMPS. WEDGE IS PROHIBITED ON -01 AND -50 THRU -66 SIZE CLAMPS
24、. WEDGE SHALL BE INTERGRALLY MOLDED TO CUSHION OR VULCANIZED USING PRESSURE AND HEAT TO ACCOMPLISH A BOND BETWEEN CUSHION AND WEDGE. WEDGE SHALL OVERLAP AND TOUCH OPPOSITE END OF CUSHION WHEN CLAMP MOUNTING HOLES ARE ALIGNED AND DIMENSION G IS 0.00 (CLAMP COMPLETELY CLOSED).9. CLOSURE TEST: THE CLAM
25、P SHALL BE INSTALLED ON A BAR HAVING A DIAMETER EQUAL TO THE NOMINAL D DIMENSION WITHIN .001. DIMENSION G (GAP) SHALL BE RESTRAINED WITHIN THE SPECIFIED TOLERANCE LIMITS AND THE HOLES SHALL BE IN ALIGNMENT WITHIN .010. THE BAND WIDTH STRAIGHTNESS (PARALLEL TO THE BAR AXIS) SHALL BE WITHIN .010 EXCEP
26、T IN THE AREA OF THE STIFFENING BEAD./10/ EXTRUDED MATERIAL SHALL BE IDENTIFIED BY A BLUE STRIPE EXTENDING LENGTHWISE ALONG BOTH EDGES OF THE CUSHION. THE STRIPE WIDTH SHALL BE EQUAL TO THE WIDTH OF THE CUSHION EDGE. MOLDED MATERIAL SHALL BE IDENTIFIED BY A BLUE AREA AT THE WEDGE END. THE BLUE AREA
27、SHALL BE ON ONE OR BOTH EDGES OF THE CUSHION AND MAY INCLUDE THE WEDGE AND SHALL HAVE A MINIMUM LENGTH OF .125 in TO A MAXIMUM OF .750 in. THE BLUE AREA SHALL BE LOCATED WITHIN AN AREA NOT TO EXCEED 1.50 in OR 50% OF THE TOTAL CUSHION LENGTH, WHICHEVER IS SMALLER, WHEN MEASURED FROM THE WEDGE END. I
28、N NO CASE SHALL THE BLUE AREA EXTEND BEYOND 50% OF THE CUSHION LENGTH. THE MATERIAL USED FOR THE BLUE IDENTIFIER SHALL BE THE SAME AS THE CUSHION MATERIAL EXCEPT COLOR BLUE. INKING OR OTHER SURFACE COLORING METHODS SHALL NOT BE USED./11/ CHLOROPRENE RUBBER MATERIAL SHALL BE SUBJECTED TO THE OZONE RE
29、SISTANCE AS FOLLOWS:a. THE TEST SPECIMEN SHALL BE CUT FROM AN ACTUAL CLAMP CUSHION. IF THE PARTICULAR CLAMP CUSHION IS NOT SUFFICIENTLY LONG TO OBTAIN THE SPECIMEN, A LONGER SECTION MAY BE USED AS LONG AS IT IS VERIFIED THAT THE LONGER SECTION COMES FROM THE SAME LOT AND CURE AS THE SHORT CUSHION SE
30、CTION.b. THE TEST SPECIMEN SHALL BE CONDITIONED BY EXPOSURE TO DRY AIR AT A TEMPERATURE OF212 F 5 F FOR A PERIOD OF 70 h.c. THE TEST SPECIMEN SHALL BE CUT PARALLEL TO THE LONGITUDINAL DIRECTION OF THE CLAMP CUSHION. THE SPECIMEN SHALL BE A DUMBBELL SHAPE AND SHALL HAVE A REDUCED SECTION WIDTH OF .07
31、5 in .010 in AND A REDUCED SECTION LENGTH OF 1.0, 1.5, OR 2.0 in.d. THE INITIAL THICKNESS OF THE SPECIMENS SHALL BE MEASURED AND RECORDED. MOUNT THE SPECIMENS IN A SUITABLE FIXTURE AND LONGITUDINALLY STRAIN TO 70% 3%. THE FIXTURE HOLDING THE STRAINED TEST SPECIMENS SHALL BE PLACED IN A TEST CHAMBER
32、HAVING AN OZONE CONCENTRATION OF 600 30 PARTS PER HUNDRED MILLION AND A TEMPERATURE OF 125 F 5 F. THE OZONE GENERATION AND MEASUREMENT TECHNIQUE SHALL BE IN ACCORDANCE WITH ASTM D 1149. THE DURATION OF THE TEST FOR VARIOUS THICKNESS SHALL BE AS FOLLOWS:TABLE 3UNRESTRAINED SPECIMEN THICKNESS EXPOSURE
33、 TIME.041 in TO .050 in 2 h 50 min.051 in TO .060 in 3 h 30 min.061 in TO .070 in 4 h 10 min.071 in TO .080 in 4 h 50 minCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-CLAMP, LOOP TYPE, CUSHIONED SUPP
34、ORTAEROSPACE STANDARDAS21919SHEET 5 OF 5AS21919NOTES (Continued):e. CRITERIA FOR CONFORMANCE TO THE CHLOROPRENE OZONE RESISTANCE TEST IS THE ABILITY OF THE STRAINED SPECIMEN TO MEET THE REQUIREMENTS OF THE TEST WITHOUT COMPLETE BREAKAGE. SURFACE DETERIORATION OR SEVERE CRACK PROPAGATION WITHOUT COMP
35、LETE BREAKAGE SHALL NOT BE CAUSE FOR FAILURE.12. REMOVE BURRS AND SHARP EDGES.13. DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994.14. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: .XX .010, .XX .03.15. INTENDED USE: THESE CLAMPS ARE INTENDED FOR GENERAL PURPOSE CLAMPING APPLICATIONS I
36、NCLUDING ELECTRICAL WIRE BUNDLE CLAMPING. FOR HIGH PERFORMANCE LOOP STYLE CLAMPS FOR USE IN MIL-H-5540 HYDRAULIC SYSTEMS SEE MIL-C-85052./16/ EXAMPLE OF PART NUMBER:Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-
