GMNA-VOL-II-SEC-M-1.101-1979.pdf
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1、GENERAL MOTORS ENGINEERING STANDARDS - A B B C D - E E E SQUARE HEAD PIPE PLUGS RECESS ANO DETAIL OF CONTOUR OPTIONAL Square Width, Maxinaun Cast Iron Plain 103865 103866 103867 103868 103869 103870 106642 106643 187056 Cast Iron Cad or Zinc 143932 143933 143934 143935 143936 143937 143938 143939 43
2、1622 Malleable Iron Plain 219187 219189 219191 219199 219301 219303 219305 219307 219309 Malleable Iron Cad or Zinc 219188 219190 219198 219200 219302 219304 219306 219308 219310 Steel Plain 103877 103878 103879 103880 103881 103882 113181 113182 187565 Steel Cad or Zinc 117243 117244 143980 143981
3、143982 143983 143984 143985 453925 Brass Plain 113175 112578 112304 113176 113177 113178 113179 113180 187412 Y (11 Ute with Cltt tarrous merrls. (2) U* with Cast non-ferrous metais. SQUARE SOCKET PIPE PLUGS G A CAST BROACHED Ill Use wifh Cast or malleable iron. 12) Use with cas1 brass. (31 Use with
4、 steel andlor broached hole. Pipe Plugs murt eontorrn 10 General SPcciticalions on Page M-1.102. Thee spocificationr were dweloped without considering whether parents may or may nor be involved. In all carsr, therefore, the wpplier shall be required to .arume Patent liability. Primed in U. S . A. EN
5、GRG STDS PAGE M-1.101 NOVEMBER, 1979 Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/24/2008 00:59:48 MDTNo reproduction or networking permitted without license from IHS -,-,- GENERAL MOTORS ENGINEERIN
6、G STANDARDS A B SLOTTED HEADLESS PIPE PLUGS Taper Pipe Thread i/8 I /4 Thread Length, Minimum .37 -44 Thread Length, Minimum .27 -41 OPTIONAL CONSTRUCTIONS C D R Slot Width Slot Depth Crown Radius A B C .O50 .O75 I .O70 1 .113 .a12 1.094 Taper Pipe m e a d I /4 3/8 1/2 3/4 I Shoulder Length .375 .43
7、8 .500 .562 .625 ,750 Hexagon Thickness . iaa .188 .219 .219 .312 ,312 I Material k Finish I F .54 .55 -088 .119 .156 .139 .156 -235 1.375 1.688 OM PART NUMBERS UP11 Thickness, Minimum - - .156 .156 .188 .188 Steel Steel Brass Plain 103883 103884 103885 103886 103887 103888 Cadmium or Zinc 125947 14
8、3992 143993 143994 143995 143996 Plain 1 118831 I 113935 1 115711 1 115712 1 115713 I 115714 1 U I . only with uncrowned steel oluw. HEXAGON HEAD PIPE PLUGS t-“-! .- y A-/ -IF+ RECESS AND DETAIL OF CONTOUR OPTIONAL -CHAHFER D Hexagon Width E I Recess Diameter ?/16 - 9/16 - 1 i/i 6 .375 718 .500 1-1/
9、16 .688 1 -5/16 .a75 GM PART NUMBERS Material L F M s h Brms Plain I 127950 I 127951 1 127952 I 144027 1 144028 I 144029 Pipe Piug must conform m Genmrii Sodfiutionr b6low. GEMERAL SPECFIGATIONS 1 GWERAL: Steel square socket, steel and brass slotted hem and brass hexagon head pipe plugs conform to m
10、anufacturing practice of their respective sources. A i l other ferrous plugs conform to the American National Standard 816.14. All other brass plugs conform t o the American National Standard 816.15. equivalent; where plugs are made from brass bar stock, the material shall be GM 4061-M, or equivalen
11、t. 4 THREADS: American (National) Standard Taper Pipe Threads (N-etaiied specifications are given In ANS; 82.1. The gaging limit shall be plus and minus one thread. 4.1 Threads shall be chamfered 45, one thread deep. Square Socket pipe plugs shall be chamfered on both ends. The tabulated thread leng
12、th shall Include the chamfer. 2 HISCEUANEOUS DIMENSIONS: Taper on head of square head pipe plugs may be minus 40 total. Taper on wrench opening of cast square socket pipe plugs ay be plus 40 total. Slight ronding at sides- of- square socket, and broaching slugs left i n broached hole shall be permis
13、sible. 3 MATERIAL: C a s t Iron; malleable iron OM 114, or equlval- e n - SAE 1112, or equtvalent; where brass is specl- fled for castings, the material shall be GM 4041-M, or their serviceability. 5 FINISH: Cadmium or zinc plating: OM 4252-M, Code 15. s p m a t l o n shall apply. It requires cadmiu
14、m or zinc thickness of .O0015 mlnimum and 24 hours salt spray. 6 WORKMANSHIP: Pipe plugs must be free from burrs, loose scale, sharp edges and all other defects that might affect Then fiC.tioll wem dedwed without con brass i 4041-l or equivalent. Pressure Rating: The pressure rating is 150 pounds fo
15、r malleable iron fittings and 125 pounds for brass fittings. The ratings designate the maximum working saturated steam pressure. SPECIFICATIONS The threads shall be countersunk 90 included angle to B depth of not less than one-half the pitch. The tabulated thread length shall include the countersink
16、. Angular alignment of the threads of a l l openings shall be as indicated nithin 1/16 inch in one foot. - Finish: Zinc plating: GM 42524. Code 15, specification shall apply. It requires.zlnc thickness of .OW15 minimum and 24 hours salt spray. Threada: Amrican(Natlona1) Standard TaperPipeThread (NPT
17、). Defects: Pipe crosses must be free frm burrs, loose md specifications for threads are given in ASA B2.1. The gaging limit shall be plus and minus one thread. - s h a r p edges, primary graphite and a l l other defects that might affect their serviceability. These specirications were developed wit
18、hout considering whether patents may or nuy not be involved. In al1 c8sea. ohere- fore, the supplier shall be required to assume patent liability. ENCRG . STOS . PAGE M-14.101 JUNE, 1956 Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, U
19、ser=Japan, IHS Not for Resale, 06/24/2008 00:59:48 MDTNo reproduction or networking permitted without license from IHS -,-,- VND.GM VOL II SEC M-ENGL 1979 900b379 00LLb78 98b B I 81 C Cl Thread Depth Flange Flange Inside Diameter Dimeter Thickness GENERAL MOTORS ENGINEERING STANDARDS X Y GM PART - -
20、 NUMBERS - Center to Hslleable Iron End Center to md A I AI .249 -249 .273 .273 -302 Nominal Size and Taper Pipe Thread 1.26 1.14 1.28 1.16 218733 218735 1.33 1.19 1.43 1.29 218736 218737 1.44 1.30 1.52 1.38 224967 179479 1.52 1.38 1.69 1.55 218738 218739 1.65 1.51 1.74 1.60 224968 179480 1 1 1 : ;
21、3/4 -75 .75 -75 .75 l-ll4l 1-1/4 3y .50 2.375 2.445 1.050 1.107 .156 2.963 .58 2.375 2.445 1.315 1.385 .156 2.963 .67 2.375 2.445 1.660 1.730 .156 2.963 .70 2.375 2.445 1.900 1.970 -156 2.963 REDUCING PIPE CROSSES rx-r-x .58 .50 1.660 1.730 1.050 1.107 2.153 :66; I .58 I 1.660 I 1.730 I 1.315 I 1.38
22、5 I :% I 2.153 1 ; : I -50 .58 .9 1.900 1.970 .9701 1.050 1.3151 1.107 1.3851 .140 .140 12.427 2.427 .70 -67 1.900 1.970 1.660 1.730 .140 2.427 1.197 .302 1.458 .302 1.458 .341 1.771 .341 1.458 .368 1.771 -368 2.153 .368 Reducing Pipe Crosses must conform t o General Specifications belou. GENERAL SP
23、ECIFICATIONS General: The fittings in this standard conform uith American Standard, ASA B16.3. Pressure atinpl: malleable iron fittings. The rating designates the maxi- The pressure rating is 150 p0WdS for mum working saturated-steam pressure. Ribs: =with the manufacturer. The use of ribs or lugs on
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- GMNA VOL II SEC 1.101 1979
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