1、MS9438B SUPERSEDING MS9438A 13 DECEMBER 1972 27 OCTOBER 1 995 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 MILITARY SPECIFICATION SHEET SCREW, MACHINE-STEEL. AMs 6304. DIFFUSED NICKEL-CADMIUM PLATED HEXAGO HEAD, DRILLED. .138-40 UNJF-3A .938 1.000 1.062 1.125 1.188 1.250 1.312 1.375 1.438 1.500 THIS SPEC
2、IFICATION IS APPROVED FOR USE BY ALL DEPARTMENTS AND AGENCIES OF THE DEPARTMENT OF DEFENSE. THE REOUIREMENTS FOR ACOUIRING THE PRODUCT DESCRIBED HEREIN SHALL CONSIST OF THIS SPECIFICATION SHEET AND THE ISSUE OF THE FOLLOWING DOCUMENT USTED IN THAT ISSUE OF THE DEPARTMENT OF DEFENSE INDEX OF SPECIFIC
3、ATIONS AND STANDARDS (OODISS) SPECIFIED IN THE SOLICITATION: (SEE REO. 13) ANLFACTURERS IDENTIFICATION ER AS 478 CLASS A THREAD RUNOUT IN ACCORDANCE WITH AS 3062. 0.070 BOTH CHAMFER 30 TO 0.250 BEARING SURFACE SECTION THRU THREAD PROFILE TABLE I. .DASH NUMBFRS AND DIMFNSIONS -02 -03 -04 -05 -06 -07
4、-08 -09 -10 -1 1 -12 - .250 I .O%-.O78 .312 .O%-.O78 .Os-.O78 .058-.O78 .562 .058-.O78 .625 I .058-.O99 .688 .102-.162 I .164-.224 .226-.286 .875 .289-.349 PPROX HEIGHT .B/ 1 00 .26 .28 .31 .33 .35 .37 .39 .42 .44 .46 .48 - .352-.412 .414-.474 .476-536 539-599 .602-.662 .664-.724 .726-.786 .7a9-.849
5、 .a52-.912 .914-.974 APPROX WEIGHT .59 .62 .64 .66 .68 T .70 LB/1 DO ENTIRE DOCUMENT RMSED ASMC N/A 1 OF 2 DISTRIBUTION STATFMFNT A. APPROVED FOR PUBLIC RELEASE; DISTRIBUTION IS UNLIMITED. FSC 5305 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS94
6、38B REQUIREMENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 1 o. 11. 12. MATFRIAL: STEEL IN ACCORDANCE WITH AMs 6304. JHRFADS: THREADS IN ACCORDANCE WITH MIL-S-8879. JlIMFNSIONING AND TOI FRANCING : WITH ASME Y14.5M. HT F HEAD TO SHANK FILLET SHALL BE COLD ROLLED AFTER HEAT TREATMENT MAGNFTIC PART ICI F INS PE- : J
7、MRDNFSS; ROCKWELL C42-46. FINISH; FINISH SHALL BE DIFFUSED NICKEL-CADMIUM PLATE IN ACCORDANCE WITH AMs 2416. DIMENSIONING AND TOLERANCING SHALL BE IN ACCORDANCE T“E s: BFARING SURF=: BEARING SURFACE SHALL BE FIAT AND WASHER FACED. SHALL BE EQUAL TO THE MAXIMUM WIDTH ACROSS FLATS WITHIN A TOLERANCE O
8、F MINUS 10% IN ACCORDANCE WITH ANSI 818.2.1. BREAK SWP EDGES .W3-.O15 UNLESS OTHERWISE SPECIFIED. DIAMETER OF BEARING SURFACE PART Nm: DASH NUMBER FROM TABLE I. THE PART NUMBER SHALL CONSIST OF THE BASIC MS NUMBER FOLLOWED BY A EXAMPLE MS9438-04 H NUMBER l-lf_-. BASIC MS NUMBER MS9438-04 INDICATES S
9、CREW, MACHINE - STEEL, AMS 6304. DIFFUSED NICKEL-CADMIUM PLATED, HEXAGON HEAD. BRILLED. .138-40 UNJF-34 LENGTH .375. 13. PROCURFMENT SPFCIFICATION ; AMs 7452. UXEz 1. 2. 3. 4. 5. 6. 7. ALL DIMENSIONS IN INCHES. DO NOT USE UNACSIGNED PART NUMBERS. IN THE MNT OF A CONFLICT BETWEEN THE TEXT OF THIS DOC
10、UMENT AND THE REFERENCES CITED HEREIN, THE TEXT OF THIS DOCUMENT SHALL TAKE PRECEDENCE. UNLESS OTHERWISE SPECIFIED. ISSUES OF REFERENCED DOCUMENTS ARE THOSE IN EFFECT AT THE TIME OF SOLICITATION. THIS STANOARD WAS DEVELOPED COOPERATNELY WITH THE SAE AEROSPACE PROPUSION DIVISION. AS AND AMs ARE SAE P
11、UBLICATIONS. I“E FOR NEW DEGIGN AFTER 13 DECEMBER 1972. NO SUPERSEDING DOCUMENT. THE APPLICATION FOR WHICH THE INACTM MS9438 PARTS WERE ORIGINALLY DESIGNED NO LONGER EXIST. MILITARY INTERESTS CUSTODIANS NAW - As AIR FORCE - 82 PREPARING ACTMM DIA-IS (PROJECT: 5305-21 13) RMFWF R: AIR FORCE - 11 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
