1、AEROSPACE STANDARD BUSHING, SLEEVE PLAIN, PRESS FIT, REAM TYPE AS14237 ISSUED 1997-08REVISED 2003-11REAFFIRMED 2010-06CUSTODIAN: SAE ACBG REV.AFEDERAL SUPPLY CLASS3120 AS14237SHEET 1 OF 4REV.ANOTICE THIS DOCUMENT HAS BEEN TAKEN DIRECTLY FROM U.S. MILITARY STANDARD, MS14237, AND CONTAINS ONLY MINOR E
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10、REV.AAS14237SHEET 2 OF 4REV.AFIGURE 1 TABLE 1 SIZE DASH NO.NOM.DIA. A BRECMDHOUSING BORE INTERFERENCE FIT(REF.)WEIGHT (REF.) (LBS.)-03 .1900 .177 .184 .3142 .3137 .3133 .3125 .0017.0004.053 X L(MAX)X D -04 .2500 .235 .243 .3767 .3762 .3758 .3750 .0017.0004.069 X L(MAX)X D -05 .3125 .299 .307 .4393 .
11、4388 .4383 .4375 .0018.0005.082 X L(MAX)X D -06 .3750 .356 .364 .5020 .5013 .5008 .5000 .0020.0005.099 X L(MAX)X D -07 .4375 .421 .428 .5646 .5639 .5634 .5625 .0021.0005.112 X L(MAX)X D -08 .5000 .483 .490 .6272 .6264 .6259 .6250 .0022.0006.126 X L(MAX)X D -10 .6250 .608 .615 .8150 .8140 .8134 .8125
12、 .0025.0006.232 X L(MAX)X D -12 .7500 .732 .742 .9400 .9390 .9384 .9375 .0025.0006.274 X L(MAX)X D -14 .8750 .857 .867 1.06511.06411.06351.0625.0026.0006.315 X L(MAX)X D -16 1.0000 .982 .992 1.19011.18911.18851.1875.0026.0006.356 X L(MAX)X D -18 1.1250 1.1071.1171.31511.31411.31351.3125.0026.0006.39
13、6 X L(MAX)X D -20 1.2500 1.2321.2421.44011.43911.43851.4375.0026.0006.437 X L(MAX)X D AEROSPACE STANDARD BUSHING, SLEEVE PLAIN, PRESS FIT, REAM TYPE AS14237 REV.AAS14237SHEET 3 OF 4REV.AWEIGHT(MAX)= /4 x (O.D.(MAX)2- (I.D.(MIN)2x L(MAX)x D TABLE 2 MATERIALDENSITY (REF)4130 STEEL .28317-4 PH .283ALUM
14、INUM NICKEL BRONZE .276 BERYLLIUM COPPER .298MATERIAL: ALLOY STEEL: 4130 STEEL PER AMS-S-6758 OR AMS-T-6736 CORROSION RESISTANT STEEL: 17-4 PH PER AMS 5643, PASSIVATE PER AMS-QQ-P-35 OR ASTM A 967 CITRIC 1, CITRIC 2 OR CITRIC 3 ALUMINUM NICKEL BRONZE PER AMS 4640 BERYLLIUM COPPER PER AMS 4534 OR AST
15、M B 196, CONDITION TH04 HEAT TREAT: ALLOY STEEL: 125,000 - 145,000 PSI UTS CORROSION RESISTANT STEEL: 135,000 - 170,000 PSI UTS BERYLLIUM COPPER: 165,000 PSI UTS (MINIMUM) FINISH: (P): CADMIUM PLATE OUTSIDE DIAMETER AND END SURFACES PER AMS-QQ-P-416 TYPE II, CLASS 2. FLASH PERMITTED IN BORE. (E): ZI
16、NC NICKEL PLATE ALL OVER (I.D. OPTIONAL) PER AMS 2417 TYPE 2. (D): IVD ALUMINUM COATING PER MIL-C-83488 TYPE II, CLASS 3. PART MARKING: BAG AND TAG WITH THE SUPPLIERS NAME, TRADEMARK, OR CODE NUMBER, BASIC PART NUMBER (LESS MS PREFIX). MATERIAL CODE AND SIZE CODE. PACKAGES SHALL BE MARKED WITH THE S
17、UPPLIERS NAME, TRADEMARK OR CODE NUMBER AND THE COMPLETE PART NUMBER FOR ALL BUSHING SIZES. PART CALLOUT:EXAMPLES: MS14237C06P037 = BUSHING, PLAIN, CORROSION RESISTANT STEEL, FOR .375 NOM. DIA., CADMIUM PLATED, .370 INCHES LONG MS14237B16-500 = BUSHING, PLAIN, BERYLLIUM COPPER, FOR 1.000 NOM. DIA.,
18、UNPLATED, 5.00 INCHES LONG IN THE EVENT OF A CONFLICT BETWEEN THE TEXT OF THIS STANDARD AND THE REFERENCES CITED HEREIN, THE TEXT OF THIS STANDARD SHALL TAKE PRECEDENCE. AEROSPACE STANDARD BUSHING, SLEEVE PLAIN, PRESS FIT, REAM TYPE AS14237 REV.AAS14237SHEET 4 OF 4REV.ANOTES: 1. LENGTH TO BE SPECIFI
19、ED IN .010 INCH INCREMENTS. BUSHING LENGTHS ALLOWED TO BE CODED BY THIS STANDARD SHALL BE A MAXIMUM OF 5 TIMES THE NOMINAL BORE DIAMETER AND A MINIMUM OF 1/4 TIMES THE NOMINAL BORE DIAMETER. 2. DIAMETERS TO BE CONCENTRIC WITHIN .003 FIR. 3. DIMENSIONS TO BE MET AFTER PLATING. 4. ALL SURFACES 125 RA OR SMOOTHER IN ACCORDANCE WITH ASME B46.1. 5. THESE BUSHINGS INTENDED FOR REAMING ON ASSEMBLY. 6. DIMENSIONS ARE IN INCHES.
