1、M3L-I-4914A 25 April 1991 SUPERSEDING MIIrI-45914 1 Decaber 1967 MILrrARY SPIFICATICN This specification is approved for use by all Deparh;rrents and Agencies of the -t of mfense. 2.1 , . . . . . _. . . . . . . . .:. . . 2.1.1 ifications, standards and handbooks. The follokhg specifica- tions, a and
2、 handbooks fom a PaFEms document to the extent specified herein, Unless otherwise eified, the issues of these d-ts are those Listed in the issue of the Department of Defense Index of Specifications and Standards (DoaISS) and -lemnt them, cited in the solicitation (see 6.2). Provided by IHSNot for Re
3、saleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-457L4A 53 = 777770b 0474437 O mA-225/6 QQ-A-225/8 *?+250/4 QQ-A-250/11 Q)-P-35 QQ-F416 PPPH-1581 MIGS-5626 . . . _. . MUrH-6875 ms-8879 HL-I-17214 MTIrL-46010 -Aluminum Alloy Bar, Rod, and Wire, Rolled, Drawn or -Alhum Al
4、lay Bar, Eod, Wire, blled, Drawn, or Cold -Aluminum Alloy 2024, Plate and Sheet Cold Finished, 2024 Finished, 6061 -Aluminum Allqr 6061, Plate and Sheet -Passivation Treatments for Austenitic, Ferretic, and “tmsitic Corrosion-Resisting Steel (Fastening ., , . *_ 3.10 Mechanical properties. Inserts c
5、cmfonnhg ta the design and dinensions of MS51830, MS51831 and MS51832 shall be capable of develj t-he . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-f I. .a .I I. . . .,. . . . . . 1, . ooooooaoooo omouJooooo a .-I Provided by IHSNot for ResaleNo
6、reproduction or networking permitted without license from IHS-,-,-MIL-I-459L4A 53 m 9999906 0474425 b m MIG.I-45914A 3.10.2 Resistance to pullout. The installed insert shall have a mininnun a resistcanoe to pullout fram the parent material as specified in table III, IV or V as applicable when tested
7、 as specified in 4.2.8.3.3 . O86 8 112 - 138 . 164 190 .250 3125 8 375 8 4375 b 500 - 1/ 2/ NQninal EkbTBl “hmad Size 164-32 e 190-32 -216-28 . 250-28 - 312418 375-16 4375-14 e 5oo-s3 5625-12 . 625-11 . 0157 .O302 0329 . 0669 - =*51.7 . 2371 .3049 .4299 . 5665 8 7172 Ultkte pullout Load Ibs. - 2/ 42
8、3 8 15 aa8 1,806 4,095 6,401 8,232. 15,295 .ri; 607 I9 , 364 Shear Ehgagemnt Area - . 0157 .O302 . 0329 . O669 85945 1726 e 2321 . 3366 . 4606 ,5831 423 8 15 1,806 2;SSl ma 411660 4 6 , 266 9,088 12,436 15;743 shear engagerrrent area is an assenbled dixensional due for the mall emgaged area of the m
9、ating threaded mJnbers. It does not represent a dixension of either of the mmbers in an unassenbled codtion. Pullout load = (Shear engagaTent area) x (27,000 psi) e !lb ampute minimum pillout load in other materials, multiply shear engagenent area by applicable rtlininann shear strength of mterial.
10、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-45914A 53 m 9999906 047442b 8 W 190 4 250 -3125 375 a 4375 . 500 . 5625 .G 625 , 750 -,W5 1.000 M17rI-45914A 375-16 . 4375-14 . 500-13 .5625-12 . 625-11 .6875-11 .8125-16 687.S-1.4 1.125-12 1. ;“P
11、2 1.375-12 I. shear E%aFl=nt Area- Escterna1 In 1/ n-kcked Td 1901 . 2842 e 3588 o 4995 -7172 . 8884 1 . 2493 1 .r 4866 2,4901 am - 3 . 8381 I . Ultimate Pullout bad fbs. - 2/ 5 1 132 7 1673 9 687 13 432 19 364 23 986 33,731 4Qp I38 67,232 wie99 L I03 628 -r “ “ i “L Ultimate Pullout Load fbs. 2/ In
12、teGil Thread Znck Part 3,121 5,319 7 8 041 10 376 15,743 19,893 27 1666 . 33,520 66,090 “ .e3 )W2 102,408 - 2/ Rllout load = (Shear enga-t area) x (27,000 psi) . To txfpte minirrmm pullout load in other materials, nailtiply shear engagenwt anx by applicable ultimate sheax strength of mteKial, Provid
13、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-I-45914A 53 9999906 0474427 T _a . ., . I. . “. . MIsr1-45914A T+B3,Vt, -trem - MS 51532 hW. l4mnum Fullout EwPgf=t Engag-t Ultimate shear shear Minhum, Area - Area- Icad NcminaJ. Nominal Thread Intemal
14、 m-. mad In I/ Thread Ihre7gJ. . I I “-*- . “I. - - “ .-, . (._. 1. ,. 3.10.3 Torque aut. The installed insert shall resist the torque values specified in table VI when installed in conformance with MS51835 and tested in accoxdanoe with 4.2.8.3.4. Provided by IHSNot for ResaleNo reproduction or netw
15、orking permitted without license from IHS-,-,-MIL-I-45914A 53 9999906 0474428 1 Insert Internal lhread Size . 086 . 112 . 138 . 164 * 190 . 250 . 3125 . 375 b 4375 . 500 5625 . 625 . 750 875 lbooo “1-45914A MS 51830 Inserts 10 20 30 45 72 I20 240 320 400 600 Ms 51831 ltlSertS 110 180 360 480 600 900
16、 1,200 1,800 2 I 400 3 I 600 4,800 MS 51832 Inserts 180 360 480 600 900 1 p 200 1,800 2,400 3 , 600 4 800 6,000 .:_. . .,.i; : d! :I ,; dl! . 3.10.4 “ Hardmss, Inserts shall have a hardness range as specified on the appUC;ible specication sheet (see 3.1) hen tested in conformn with 4.2.8.3.8. 3.11 B
17、ktallurqical properties. 3 . 11.1 Dismntinuities Inserts shall not contain discontinuities which “ exceed th3 fbllawing limitations when examines in confonnan with 4.2.8.3.6. 3.11.2 Cracks (see 6.3.1). Inserts shall be free fran cracks in any direction or location when examined in ccmfoxman with 4.2
18、.8.3.6. 3.11.3 Iaps, seams and inclusions (see 6.3.2, 6.3.3 and 6-3.4). Inserts *ll plat hve w. seams and ix!lusians in locatians as E VIII. Visual and dimnsional examination. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-45914A 53 m 9999906
19、0474433 5 m . MIW1-45914A 4.2.8.1 %st materials. 4 . 2.8.1-1 Test blocks. %st blocks shall be fabricated as specified in figure 2. Larger test blocks for nltple testing of inse- are pennssible. The aluminum alloy used to prepre the test blocks shall be tested (by heat lot) to detemine the ultimain a
20、ccordance wth Murs-8879. . 4.2.8.2.4 Fbmkt. The LuI?Dut of the hbrnal and external kaad pitch diameters shal fbllawlng examinatinsquim of 3.4.1. . 1,s ,.,“,*, ,.I .,I, .,. .,4*,“.,. 4.2.8.2.8 Passivation. Passivation shall be inspected for conformme . .=3.*.2 .*“% “i“ ._“._i“A. _ . 4.-?,83 _ Twts -0
21、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-45714A 53 777770b 0474436 O m I. ,. . MIL-I-45914A 4.2.8.3 . 2 ?%id tensile stxerqth (proof 1 test. Test specirrws installed strength into test blocks (figure * =t 2) yi-t as specified .w.*.asae
22、in 4.2.8.1.2 *ly shall be used for prio axial to erqagiaiJ the self-locking dewiof.2 with finger torque dEihsll be of suffiei.ent Jebgth to extX%!l t.klmqh the imat a mixllntaa of two (2) pitchef3. Ihe test shall be aonducted in fixtures as Shawn in figure 3. BE minirmpn axial load spcified in table
23、 II, a applicable, shall then be applied to the asely and failure of the insert shall not occzlr belaw tho.se loads specified in table II. In the event of bolt failure belm the applicable axial strength rat-, the test shall be repeated until the applicable axial strength rating of the insert is emee
24、ded. Rate o loading shall not exceed 100,000 psi per minute based on the shank area of the bolt. . . , . .I .! 1: i! 4.2.8.3.5 Raw mterial chemical analysis. Paw material chmical analysis certification may be acuepted in lieu of test data. 1 i . .i-. “I . .I . -. . -. Provided by IHSNot for ResaleNo
25、 reproduction or networking permitted without license from IHS-,-,-t I DI RECTI ON OF LOAD A MIL-I-45914A ,“- TEST BOLT (4 - UPPER YOKE 2.8 J YOKE OR BUSHING J TEST SPECIMEN OPTION 2 AS SPECIFIED .IN (4.28.1.21 . I DIRECTION OF LOAD I A L YOKE MIN. 1.0. = DR 1 VlNG HEAD -2 x W“ M.- W - INSERT EXTERN
26、AL THREAD, TYP I CAL . . . . - “. . TEST BOLT (4.2.8-1. . .I O ,. . . .- I. IL FIGURE 3. Tensile strength (3.10.1) and resistance to pull-out (3.10.2) test sst-Uds). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-45914A 7 APPLIED TORQUE TORQUE
27、 WRENCH- SOCKET WRENCH 7 U TEST SPECIMEN (4.2.8.1.2) 7 TEST BOLT (4.2.8.1.3.1 DR IVE OPT1 Off AL SPACER. 0.0. = AS REQUIRED, MAY NOT TOUCH TEST BLOCK I.D. = .010 OVER MAX. BOLT DIA. LENGTH = OPTIONAL MATL. : STEEL, 90 HRC MIN. 4 OPT1 APPLIED TORQUE OPTION f - -Ir APPLIED lTDRQUE I i DN 2 SOCKET WREN
28、CH SPACER CSINK. DIA. ,015. LARGER THAN MAJOR DIA. OF INSERT EXTERNAL THREAD CSINK ANGLE IS 60“ TEST SPECIMEN (4.2.8.1.2) GAP = ONE & i/2 TO MAY BE MODlFiED AS . I., , . - , . INSERT- FWD. SJDE OPTION 3 FIGURE 4. Torque-out test set-upts) (3.8.4). Provided by IHSNot for ResaleNo reproduction or netw
29、orking permitted without license from IHS-,-,-6. tKY2ES (This section contains informtion of a general or explanatory nature that may be helpful, but is not rtlandatory.) 6.1 Intended use. Inserts covered by Ws specification are intended as a general purpose fastener with depth locating keys and a m
30、echanical lock to resist rotation when installed, 6-2 &qu-isition requimmnts. rrosuj_sitim &aments shrmld th allowing: (a) etle Tnmsser and date of this specification. (b) Title, mmber and date of applicable specification sheet (see 3.1) 6.3.3 Seam. A seam is an “ed fold or lap which appears as an o
31、pening intl-ernialasreceivedfransauroe. i lI&allicmat-six, 6.3,4 -. Inclus&qw p non-w?tallic mterials in a solid 6.4 Changes h previous issue. Milqimal nutations are not: used in this revision to identify changes with re- lm the pmiw issue due.- the extensiveness of the changes. Provided by IHSNot f
32、or ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-I-45914A 53 W 9999906 0474440 2 W “1-45914A cust._odians: “AR Navy - As Air Fore - 99 Preparing activity: Army” (Project No. 5340-2027) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
