1、Copyright 2001 Society of Automotive Engineers, Inc. Printed in the U.S.A.All rights reserved.TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (412) 776-0790 SAE WEB ADDRESS: http:/www.sae.org400 Commonwealth Drive, Warrendale, PA 15096-0001SAE Technical Standards Board Rules providethat: “This report
2、 is published by SAE to advancethe state oftechnical and engineering sciences.Theuse ofthis reportisentirelyvoluntary, andits applicabilityand suitabilityfor any particularuse,including any patentinfringement arising therefrom,isthe sole responsibility of the user.”SAE reviews each technical reporta
3、tleastevery five years atwhich timeitmay bereaffirmed,revised, or cancelled.SAE invites yourwritten comments and suggestions.SHEET 1 OF 3MA2118REV.BTHIRD ANGLE PROJECTIONAEROSPACE STANDARDMA2118REV.BISSUED 1985-08 REVISED 1997-09 REAFFIRMED 2001-12(R) NUT, BULKHEAD,FITTING, METRICCUSTODIAN: SAE G-3/
4、G-3B PROCUREMENT SPECIFICATION: NONE /5/FEDERAL SUPPLY CLASS 4730FIGURE 1 NUTTABLE 1 - DIMENSIONS AND WEIGHTSBASIC NO.MA2118/16/SIZE CODE(NOMINALTUBESIZE DN)/1/T THREADPER MA1370(ISO 5855-3)4H5H A CD0.25 HKg/100MAXALUMKg/100MAXCRESKg/100MAXTI05 5 MJ 10 X 1 7.5 10.4-10.9 13.35 13.60-14.06 0.232 0.665
5、 0.36706 6 MJ 12 X 1.25 7.5 12.4-12.9 16.35 16.6 -17.1 0.349 1.00 0.55208 8 MJ 14 X 1.5 8.5 14.4-14.9 18.35 18.6 -19.1 0.466 1.34 0.73810 10 MJ 16 X 1.5 8.5 16.4-16.9 21.35 21.6 -22.1 0.629 1.80 0.99512 12 MJ 18 X 1.5 8.5 18.4-18.9 23.35 23.6 -24.1 0.705 2.02 1.1214 14 MJ 20 X 1.5 8.5 20.4-20.9 26.3
6、5 26.6 -27.1 0.903 2.59 1.4316 16 MJ 22 X 1.5 8.5 22.4-22.9 29.35 29.6 -30.1 1.13 3.23 1.7820 20 MJ 27 X 1.5 8.5 27.4-27.9 35.05 35.3 -36.2 1.54 4.41 2.4325 25 MJ 33 X 1.5 8.5 33.4-33.9 40.05 40.3 -41.2 2.07 5.94 3.2832 32 MJ 42 X 2 10.0 42.4-42.9 49.05 49.3 -50.2 2.65 7.59 4.1940 40 MJ 50 X 2 10.0
7、50.4-50.9 58.95 59.2 -60.3 3.85 11.0 6.09Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-400 Commonwealth Drive, Warrendale, PA 15096-0001NUT, BULKHEAD,FITTING, METRICAEROSPACE STANDARDMA2118SHEET 2 OF
8、 3MA2118REV.BREV. B(R)NOTES:/1/ DN = NOMINAL TUBE OUTSIDE DIAMETER./2/ MATERIAL:a. CODE LETTER D - TYPE 2024-T6 OR T851 ALUMINUM ALLOY BAR PER AMS 4112 OR QQ-A-225/6.b. CODE LETTER J - TYPE 304 CORROSION RESISTANT STEEL BAR PER AMS 5639 OR QQ-S-763.c. CODE LETTER K - TYPE 316 CORROSION RESISTANT STE
9、EL BAR PER AMS 5648 OR QQ-S-763.d. CODE LETTER T - TYPE 6AL-4V TITANIUM ALLOY BAR PER AMS 4928.e. CODE LETTER W - TYPE 7075-T73 OR T7351 ALUMINUM ALLOY BAR PER AMS 4124 OR QQ-A-225/9.3. HEAT TREATMENT: NONE.4. FINISHa. MATERIAL CODE LETTER D - ANODIZE PER MIL-A-8625, TYPE II, CLASS 2, DYED GREEN SIM
10、ILAR TO COLOR NO. 14187 OF FED-STD-595 AND DUPLEX SEALED.b. MATERIAL CODE LETTERS J AND K - PASSIVATE PER QQ-P-35, TYPE VI OR VII.c. MATERIAL CODE LETTER T - ANODIZE PER AMS 2488 OR FLUORIDE PHOSPHATE CONVERSION COAT PER AMS 2486.d. MATERIAL CODE LETTER W - ANODIZE PER MIL-A-8625, TYPE II, CLASS 2,
11、DYED BROWN SIMILAR TO COLOR NO. 10080 OF FED-STD-595 AND DUPLEX SEALED./5/ THIS NUT IS INTENDED FOR USE WITH BULKHEAD FITTING ENDS ON FITTINGS PER MA2005 (ISO 7169)./6/ IDENTIFICATION AT LOCATION SHOWN: MARK PER AS478 CLASS C OR METHOD 7A3, 15A3, OR 15B.a. FOR SIZES DN10 AND SMALLER: MANUFACTURERS N
12、AME, CAGE CODE OR TRADEMARK AND MATERIAL CODE LETTER.b. FOR SIZES DN12 AND LARGER: MANUFACTURERS NAME, CAGE CODE OR TRADEMARK, BASIC PART NUMBER AND MATERIAL CODE LETTER.7. THIS PART IS DESIGNED FOR USE IN SYSTEMS AT TYPE II TEMPERATURE (-55 TO 135 C)./8/ HEX CORNERS MAY BE ROUNDED PER ARP1942.9. TH
13、E CHANGE BAR ( l ) LOCATED IN 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.10
14、 INVENTORIED PARTS CONFORMING TO THE PREVIOUS “LETTER CHANGE“ MAY BE USED TO DEPLETION.11. INTERPRETATION OF DRAWING PER MAP4296.12. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M; REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 3.2 m Ra. HEX FLATS MAY BE 12.5 m Ra.13. B
15、REAK EDGES 0.1 TO 0.4 UNLESS OTHERWISE SPECIFIED.14. DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-400 Commonwealth Drive, Warrendale, PA 15096-0001NUT,
16、 BULKHEAD,FITTING, METRICAEROSPACE STANDARDMA2118SHEET 3 OF 3MA2118REV.BREV. B(R)15. DIMENSIONS IN MILLIMETERS. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS 0.1, ANGULAR DIMENSIONS 030./16/Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-
