1、AMSC N/A FSC 5325 MS35914G 14 August 2012 SUPERSEDING MS35914F 20 September 1977 DETAIL SPECIFICATION SHEET INSERT, SCREW THREAD - THREAD CUTTING This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described
2、herein shall consist of this specification sheet and procurement specification MIL-I-45916. FIGURE 1. INSERT, SCREW, OPTIONAL DESIGNS. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS35914G 2 TABLE I. Regular wall. Dash No. * Internal th
3、read (-3B) EXTERNAL THREAD (SEE NOTE 4) C Length .010 D E +.002 -.008 F .010 H .010 Carbon Steel Cor Res Steel MAX MIN 125 141 .188 .050 .040 .055 .109 201 251 .086-56UNC .140 (9/64)-48 .156 .050 .040 .123 .055 .094 202 252 .125 .040 .032 .047 - 126* 142* .086-64UNF .140 (9/64)-48 .188 .050 .040 .12
4、3 .055 .109 101 143 .234 .054 .044 .062 .125 203 253 .112-40UNC .171 (11/64)-40 .187 .054 .044 .148 .062 .115 204 254 .156 .049 .039 .055 - 102* 144* .112-48UNF .171 (11/64)-40 .234 .054 .044 .148 .062 .125 103 145 .281 .068 .058 .078 .156 205 255 .138-32UNC .218 (7/32)-32 .218 .068 .058 .191 .078 .
5、125 206 256 .187 .056 .048 .070 - 104* 146* .138-40UNF .218 (7/32)-32 .281 .068 .058 .191 .078 .156 105 147 .328 .068 .058 .078 .188 207 257 .164-32UNC .250 (1/4)-32 .250 .068 .058 .222 .078 .135 208 258 .218 .056 .048 .070 - 106* 148* .164-36UNF .250 (1/4)-32 .328 .068 .058 .222 .078 .188 107 149 .
6、190-24UNC .296 (19/64)-24 .375 .092 .082 .259 .109 .219 108 150 .375 .092 .082 .109 .219 211 261 .190-32UNF .296 (19/64)-24 .296 .092 .082 .259 .109 .172 212 262 .250 .069 .059 .094 - 109 151 .250-20UNC .375 (3/8)-20 .484 .109 .097 .332 .125 .281 110 152 .484 .109 .097 .125 .281 215 265 .250-28UNF .
7、375 (3/8)-20 .375 .109 .097 .332 .125 .203 216 266 .312 .099 .089 .109 - 111 153 .3125-18UNC .468 (15/32)-18 .562 .123 .110 .420 .141 .312 112 154 .562 .123 .110 .141 .312 219 269 .3125-24UNF .468 (15/32)-18 .469 .123 .110 .420 .141 .250 220 270 .375 .113 .102 .125 - 113 155 .375-16UNC .562 (9/16)-1
8、6 .687 .137 .121 .510 .156 .375 114 156 .687 .137 .121 .156 .375 223 273 .375-24UNF .562 (9/16)-16 .562 .137 .121 .510 .156 .281 224 274 .437 .126 .113 .141 - 115* 157* .4375-14UNC .640 (41/64)-14 .781 .160 .140 .581 .188 - 116* 158* .4375-20UNF 117 159 .500-13UNC .734 (47/64)-13 .906 .185 .160 .668
9、 .219 .500 118 160 .906 .185 .160 .219 .500 227 277 .500-20UNF .734 (47/64)-13 .750 .185 .160 .668 .219 .391 228 278 .562 .165 .143 .188 - 119* 161* .5625-12UNC .812 (13/16)-12 1.000 .198 .170 .742 .234 - 120* 162* .5625-18UNF 121 163 .625-11UNC .906 (29/32)-11 1.125 .213 .183 .827 .250 - 122 164 1.
10、125 .213 .183 .250 - 231 281 .625-18UNF .906 (29/32)-11 .937 .213 .183 .827 .250 - 232 282 .687 .192 .166 .219 - 123 165 .750-10UNC 1.078 (1-5/64)-10 1.375 .240 .205 .993 .281 - 124 166 1.375 .240 .205 .281 - 235 285 .750-16UNF 1.078 (1-5/64)-10 1.125 .240 .205 .993 .281 - 236 286 .812 .208 .178 .23
11、4 - * These dash numbers are INACTIVE FOR NEW DESIGN AFETR 24 JULY 1975. INTERCHANGEABILITY The slotted type inserts covered by dash numbers 1 thru 26 and 41 thru 66 given in previous revisions of this standard are cancelled after 23 April 1965 and superseded by dash numbers 101 thru 126 and 141 thr
12、u 166, respectively, given in the current revision of this standard.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS35914G 3 TABLE II. Thin Wall. Dash No. Internal thread (-3B) EXTERNAL THREAD (SEE NOTE 4) C Length .010 D E +.002 -.005 F .010 Cor R
13、es Steel MAX MIN 301 .234 .054 .044 .062 302 .112-40UNC .156 (5/32)-40 .187 .054 .044 .136 .062 303 .156 .046 .038 .055 304 .281 .068 .058 .078 305 .138-32UNC .187 (3/16)-32 .218 .068 .058 .160 .078 306 .187 .064 .054 .070 307 .328 .068 .058 .078 308 .164-32UNC .218 (7/32)-32 .250 .068 .058 .191 .07
14、8 309 .218 .064 .054 .070 310 .375 .092 .082 .109 311 .190-32UNF .265 (17/64)-32 .296 .092 .082 .237 .109 312 .250 .084 .074 .094 313 .484 .109 .097 .125 314 .250-28UNF .343 (11/32)-28 .375 .109 .097 .310 .125 315 .312 .099 .089 .109 316 .562 .123 .110 .141 317 .3125-24UNF .406 (13/32)-24 .469 .123
15、.110 .368 .141 318 .375 .113 .102 .125 319 .687 .137 .121 .156 320 .375-24UNF .500 (1/2)-20 .562 .137 .121 .457 .156 321 .437 .126 .113 .141 322 .906 .185 .160 .219 323 .500-20UNF .625 (5/8)-18 .750 .185 .160 .576 .219 324 .562 .165 .143 .188 TABLE III. Recommended Hole Sizes. Internal Thread Regula
16、r wall Thin Wall For high strength light alloys of less than average machinability, cast iron, malleable iron and mild steel For medium strength light alloys of average machinability, cast iron and high strength thermosetting plastics For low strength light alloys of excellent machinability, thermop
17、lastics and thermosetting plastics For all strength alloys, cast iron, malleable iron and all plastics MAX MIN MAX MIN MAX MIN MAX MIN .086 .134 .131 .131 .129 .129 .127 - - .112 .162 .159 .159 .156 .156 .152 .146 .140 .138 .207 .203 .203 .198 .198 .194 .175 .169 .164 .238 .234 .234 .230 .230 .226 .
18、206 .200 .190 .281 .275 .275 .270 .270 .264 .252 .246 .250 .356 .349 .349 .343 .343 .336 .330 .322 .3125 .447 .440 .440 .433 .433 .425 .390 .381 .375 .538 .530 .530 .521 .521 .514 .479 .469 .4375 .613 .605 .605 .594 .594 .585 - - .500 .704 .694 .694 .684 .684 .674 .605 .591 .5625 .780 .769 .769 .759
19、 .759 .748 - - .625 .871 .859 .859 .847 .847 .835 - - .750 1.039 1.026 1.026 1.013 1.013 1.000 - - NOTE Hole preparation for locking inserts Countersink to outside diameter of insert with 60 included angle. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
20、-,-,-MS35914G 4 NOTES: 1. MATERIAL: Carbon steel, AISI 1117, in accordance with SAE AIR4127. Corrosion-resisting steel, Type 303 and 303MA, annealed condition, hot or cold finish (as rolled) in accordance with SAE AIR4127. 2. HEAT TREATMENT: Carbon steel inserts shall be case hardened to a depth of
21、.003-.005 inch with a hardness of Rockwell 15N75 minimum. 3. PROTECTIVE COATING: Carbon steel inserts shall be cadmium plated in accordance with SAE AMS-QQ-P-416, Type II, Class 3. Corrosion - resisting steel inserts shall be passivated in accordance with SAE AMS2700. 4. THREADS: Internal threads sh
22、all be in accordance with Screw Thread Standards for Federal Services. FED-STD-H28. . External threads shall be self-tapping and have a 60 thread approximating American National form. 5. DMENSIONS: All dimensions are in inches. “D“ dimension refers to the tapered portion of the external thread (pilo
23、t length). “E“ dimension refers to the small end of the tapered portion of the external thread (pilot diameter). 6. CHAMFER: Chamfer internal and external threads to one thread length. 7. PART NUMBER: The MS part number consists of the MS number, plus the dash number. Example: MS35914-125. For inter
24、nal thread lock, add “L” after the dash number. Example: MS35914-125L. 8. LOCKING: ELEMENT: Nylon locking element is available only for inserts having a specified “H” dimension. 9. “G“ dimension equals approximately 60% of external thread pitch. 10. Thin wall inserts are supplied in corrosion resist
25、ing steel only. No internal lock is available. 11. Referenced documents shall be of the issue in effect on the date of invitation for bid. 12. For design feature purposes, this standard takes precedence over procurement documents referenced herein. 13. Cutting flutes shall extend beyond the 2nd full
26、 thread. 14. CHANGES FROM PREVIOUS ISSUE. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. MILITARY INTEREST Custodians: Preparing activity: Army - AR DLA - IS Air Force - 99 (Project 5325-2012-010) Review activ
27、ities: Army AT, AV, MI NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
