1、 “ i:; . : -. . . . “ . .-. . C. I c . ,. . I . .- .- . - - - - . . . . vJL-T-16243A SHIPS) . . 14 August 1 b 52 SUPERSEDING 1 June 1951 . . L:. MIL-T-16243 (SHIPS) INTERIM MILITARY SPECIFICATION . I . . . (Copies of specifications, standards, and drawings required by contractors spcific procurement
2、 functions should be obtained from the procuring agency or contracting officer. ) . . .-.-. I: : :1: : .=:- k:z:.7:.7.= “_ -.-.- TOOLS, NONSPARKING i -.-. - .- . . - . -.- . -+ . - . - -.-. . - . .- .- . _. . - 1. SCOPE I, 1 :I:.:I . - * . - ,“ _.- L:.:l I I I:; 1.2 Classification. - Nomparking tool
3、s shall be of the following types, as specified (see 6.1): - ype A - Chisels, hand, cold. Type B - Hammer.s, machinists, ball peen. ype E - Wrenches, box, double head, 12-point, 15O. Type F - Wrenches, screw (monkey), metal handle. . F:I:.I:1: - - . . -.-.- .-.- c I_-. I -. -_ ._ I.- . ype c - Screw
4、 drivers. ype D - Wrenches, engineers, double head, open end 15O. . -. . . . . . - I . - I. - - “ . .“ “ L . “ - . , - _ . -. - ._._. -.- . - ._ . “ . - . _ . -.- “ -.- _._ .- _- Type G - Wrenches, pipe, adjustable. 2. APFUCABLE SPECLFICATIONS, STANDARDS, DRAWINGS, AND PUBLICATIONS 2.1 The following
5、 specifications and standards, of the issue in effect on date of invitation fcr bi.ds, SPECIFIC A TIONS form a part of this specification: I . r .-*- L .- . - . -. . - ._ . . .+ . ) . _.- . -I . FEDERAL hy-H-93 - Handles, Hickory; Striking-Tool. QQ-A-367 - Aluminum-Aloy Forgings, Heat-Treated. t . -
6、. c . . ._ - . ._ . . _.- W-0-401 - Oil; Insulating (for Transformers, Switches, and Circuit-Breakers). . ?.- .-._ . ._ . _ Mi LITAF Y . - .- . .- . - . .- - . . . . - . I . ._ _.- _ -.- . . . - -.- . “._ - . -.- -. ) . - II ._._._ -.-.-C - . _. . . .-. . -._ . MIL-C-947 - Copper-Beryllium-Alloy: Ba
7、rs, Rods, Plates, Strips, and Wire. MIL-T-16033 - Bronze, Aluminum: Castings, MIL-A-17129 - Aluminum Alloy Casting; Sand, Resistant to Salt-Water. General Specifications for inspection of Material,and MIL-P-15424 - Packaging of Hand Tools. MIL-B-16166 - Bronze, Aluminum: Forgings , Heat-Treated. NAV
8、Y DEPARTMENT r:. . . . .- . L . -. i., . .- , . - . i I . . . I . - I-.-._ _-I- . - - STANDARDS MILITARY MIL-STD-105 - SamPbg Procedures and Tables for Inspection by Attributes. :._ . _._-.-. L . -.-.- . 11 . _ .-. 1 - . - -_ - . -.- . - -. in connection with as directed by the .- ). - . . - _ - I I
9、 . . .- - I .- -. I . . I . - . . . . I.- - . i Y. . I-.- y. y-:-.:* -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. . . M.IGT-l6243A(SHIPS) . . . . . . . 3. REQUIREMENTS . 3.2 Material, - . -. - . - _ . ._.- . - - . I . - .- 3.2.1,l MIL-C-947.
10、Copper-beryllium castings shall conform to the following chemical composition. Copper-beryllium forgings shall conform to the chemical requirements of Specification . . .-. . Beryllium Cobalt Silicon 0.35 maximum Nickel 1.5 maximum Aluminum O. 15 maximum Tin o. 10 maximum Lead O. 02 maximum zinc O.
11、10 maximum . . -. O. 10 maximum . remainder - - . . .- . 3.2.1.2 Aluminum-bronze,- 3.2.1.2.1 . . . -.-.-. . . . . Aluminum-bronze forgings shall conform to the chemical requirements for type ZI of Specification MIL-B-16166. 3.2.1.2.2 Aluminum-bronze castings shall conform to the chemical requirement
12、s for class 3 HT or class 4 HT of Specification MILB-16033. 3.2.1.3 Aluminum alloys. - 3.2.1.3.1 Aluminum forgings shall conform to the chemical requirements of composition 5 - T4 of 3.2.1.3.2 Castings shall conform to the chemical requirements for class 1 of Specification MIL- Specification QQ-A-36
13、7. . A- 17 129. . . . . . - . -.-. . . . . . .- - . .,.“. . _-._._ . . . . L. -, . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-T-Lb2q3A 51 777770b 03b7037 7 - 3.5 Type A, chisels, hand, cold.- 3.5.1 Body shape, - The body.of chisels shall b
14、e of octagonal section, as shown on figure 1. Figure 1. - Type A, hand cold chisel. 3.5.2 Chisels shail be furnished in the finished state, ready to be placed in service without further attention, 3.5.3 Hardness. - Each chisel shall show at all points a Rockwell hardness of not less than 35 nor 3.5.
15、4 Sizes and dimensions.- The chisel shall be of the sizes and respective dimensions shown in Table I - Sizes and dimensions. Width of Angle at edge . edge more than 45 on the C scale. table I, as specified (see 6.1). Length of taFer edge (nominal) Thickness of cutting (nominai) Length cutting cuttin
16、g Width of stock overall o (LI (A) (BI (Dl (E) Inch Inches Inches Degrees Inch Inches 6 9/16 75 3/32 . 2 2-7/8 3-1/2 1/2 3/4 7-3/4 13/16 75 1/8 1 9 1- 1/16 75 1/8 3.5.5 Tolerances. - A tolerance of plus 1/2 inch or minus 1/4 inch will be permitted, in the spec- ified overall length of chisels. A tol
17、erance of plus or minus 5 percent .will be allowed in the dimensions specified for the point or work end of chisels. Dimensions which do not affect the utility of the chisels, other than as already outlined, such as the length of taper at the work end, etc., shall be within a tolerance of plus or mi
18、nus 10 percent from the dimensions specified. t:z:z:z: . . . . . . . . ri . -.u- . , . . . i . I , L. L. . f . *. . (. . . . . . . F:. I :.:.:.:=.:.: . . .:.I;:;.:l: . . . i: In: i c I . 3 . P-.- - .-. “. . “I. -.-. .-. _-I . .-.- . -.-. . r - -.-. . _I ,_._._-_- _. :;, . , ,- -.- . - . . . . .- . -
19、 “ I . . c . . . c I. , . . . . . *- . . _._ . . . . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-T-LbZLI3A 51 9999906 0369038 O il . I 1 . L . I . . . L . -. .- . . - . .- - - “.* -._ . -.-._-_ . _.-_ . _. - -I .- -I- I - . _._.- . LI . .-.
20、-.u.-. . - -.-. . . . I . . . . . ._ - . . L . - I . - . -.-._.-._ . .- I . .- . . ._. . . - - . - . I_ . . - . _. _ - - . _._ . - _- - . ._.I . ”. -. _. . .- _l.l.-.-. I . .-.- ” . - . -. ._ . - - . - - .- . -._I_ . - . I . I” - . . - _ -. _.- - .-.-I-.- -. _.“. . .-. _. - ._ I ._ - I . .- .*- . .
21、.- . - . _ . . I . -. -.- *.- .- _- -. . -. . . -._. _.- -.-.-. ._._ ” . _._ _._ _ *- . _.- . - . _ . ._ . - . . - . _ . - . ._ . -. . .- . . . - I. ”i_ . ,.-.- ._ . _ -.-.-.I . I I - _-.-_._ . . . I 3.6 Type B, hammers, machinists, ball peen.- 3.6.1 Weight, handle length, and shape. - The hammers s
22、hall weigh 32 ounces, shall be approximately 15 inches, and the hammers shall be siinilar to figure 2. the handle length Figure 2. - Type B, machinists ball-peen hammer. 3.6.2 Tolerances. - A tolerance of plus or minus 5 percent will be permitted in the weight exclusive of the handle, specified in 3
23、.6.1. 3.6.3 Heads. - The heads of hammers shall be properly designed for the purpose for which ordinar- ily employed. Hammer heads shall show at all points a Rockwell hardness on the C scale within the range, of 10 to 25 unless specifically required to be within the range of 35 to 45 (see 6.1). The
24、face shall be slightly convex and circular, with the edges slightly chamfered. 3.6.4 Eyes.- - The eyes shall be well proportioned and properly located so as to provide a well- balanced tool. 3.6.5 Handes.- 3.6.5.1 Each hammer shall be furnished with a well-proportioned handle, properly fitted and se
25、cured in a manner that will preclude probability of tool working loose or flying off handle under service conditions, Wood handles shall be secured with wedges of nonsparking metal which will not work loose under service conditions. (Wood wedges alone are not acceptable.) 3.6.5.2 Each handle shall b
26、e of conventional shape and design for the hammer to which it is attached. Handles assembled to hammers shall be of the machinist hammer type, grade AA of Specification NN-H-93. Unless otherwise specified in the contract or order, the handles may be furnished with or without cupped impressions. 3.7
27、Type C, screw drivers. - 3.7.1 Nominal size. - The nominal size is defined as the length of that portion of the blade that ex- tends beyond the handle. 3.7.2 Shape, sizes, and dimensions. - Screw drivers shall conform substantially to the shape shown on figure 3 and be of the sizes and respective di
28、mensions shown in table II as specified (see 6.1). 4 - Figure 3. - Type C, screw driver. . . . -. -. - - . -.- _ ,- . _ . .I . l. . - - _-._-_ . _. .- - . -.-.- . i . _ . . . .-. . - -.-.-._ I- -. -.-. . -.-. . . . .- . - + . . . . . . I - . I _r_ ._,. . . . .e2 ;:;.: . .I . . , . Provided by IHSNot
29、 for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-T-1b243A 51 7777906 03b7037 2 W . MIL-T-16243A (SHIPS) 1 . r. ,.- I. . . I. . . . .I.+ - . . , . . . . . . . ,. , , i i . I . c: : . Table II - Sizes and dimension-:.:.:. I . .-. .z :- -.- . . . . _-,. . i-.“ _.I_-.
30、 . -. .*.u. . .* . . *: :Thickness : : Lengthof : : Size : Width of :of blade at : Length of I Diameter : tang in : Torsional : Bending : :(nominal) : blade : end : handle : of handle : handle : moment : moment : : (mini- : (mini- : (mini- . : mum) : mum) : mum) : I. - : Inches : inch : inch : Inche
31、s : Inches : Inches : Inch- : Inch- : : Pounds : Pounds : : 8 : 3/8 i 0.050 I 4-1/2 I 1-1/8 ;1-13/16 I. 190 . i 500 J I 12 : 3/8 : .O50 : 4-1/2 : 1-1/8 : 1-13/16 : 190 : 500 : 3 I .-,. . . -_ .u . . _._.- - . . . , . -. . I . -* F.:.=:.:I:=:.“:“.“: i i . 3.7.3 Blades. - The blades shaU be wellpropor
32、tioned, and of conventional shape and design. The thickness ofTF5Eade at end shall be uniform for the entire width within O. 003 inch. Each blade shall show a Rockwell hardness of not less than 35.nor more than 45, on the C scale, at a point within 1/8 inch from the outer end of the blade. The tang
33、end of the blade shall have integral lugs for securing the blade in the handle and to prevent the blade from turning in thehandle. exposed at the handle end. No metal shall be 3.7.4 Handles. - . : . . . . i 3.7.4.1 The handles siiall be so shaped as to afford a comfortable grip for the hand and hand
34、les shall be round and fluted or otherwise suitably designed to facilitate the ease with which they may be gripped securely under service conditions. 3.7.4.2 Dielectric characteristics. - The handles shall withstand, without failure, the dielectric test specified in 4. b. 4 and shall not be softened
35、 or otherwise affected when tested.as specified in 4,5.4. 3.7.5 Under the torsional moment test (see 4.5.2); the sample screw drivers shall not fail nor show visual indications of weakness of any nature, such as turning of the blade in ferrule or handle, splitting or breaking of the handle, twisting
36、, distortion, or breakage of any part of the.tooL 3.8 ye D, wrenches, engineers, double head, open end, 15“. - 3.8.1 General. - Wrenches shaii be suitable for either hexagon or squarehead bolts and nuts. Jaw . openings shallbemilled to the required dimensions, subject to the tolerances specified. 3.
37、8.2 Shape, dimensions, weight, and bending moment, - Wrenches shall be similar to figure 4. They shall conform to the respective dimensions and weights and shall withstand, without permanent set, formation of cracks, or fracture of jaws, or handles, and without perceptible indentauon or gouging of t
38、he bearing surface af the jaws, the respective bending moments shown in table III, as specified. Figure b. - Type D, double head, open end, 15, engineers, we noh, 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-1bZLI3A 51 = 7797906 03670LlO 7
39、 - MIL-T-16243A (SHIPS) Table ILI - Sizes, dimensions, weights, and bending moment. - : Bending c : Length :Thick- : : moment Milled openings : She of wrench : Small head I urge head : over- :ness Of : : (dimensions of all : head : Weight :Small : Large : : jaw openings :Mini- i mxi- Mini-: Maxi- :
40、(mini- : (maxl- : (maximum) : head head : mum) : mum) : : (nominal) -0 : mum : mum i mum : mum . : * a :inches : inches :inches inches : inches : Jnches -pounds Ounces : inch - : Inch- : :Pounds: Pounds : i 7/16 by i 7/16 i - 4-1/2 i 5001 780 I : 9/16 by 5/8 : .566 : .573 .629 :. . 636 : 6 : 1/2 : -
41、 : 6 : 960: 1,440: : 3/4 by 13/16 ,755: .763 : .817 .825 : 9 : 9/16 : 1 : 4 : 2,000: 2,600: : 344 by 7/8 : .755: ,763 : .880 ; ,888 : 9 : 9/16 : 1 : 4 : 2,000: 2,960: : 7/8 by 15/1 O. 446 :O. 503 i O. 509 : 5 :1- 11/16by 1- 7/8 : 1.696 . 1.708 Ii- i3ii6b; 2 : 1.822 ; 1.835 I2- 1/4. b; 2- 5/8 : 2.262
42、 i 2.277 :2- 3/8 by 2- 3/4 : 2.388 ; 2.404 :3 by 3- 3/8 : 3.016 : 3.035 :3- 1/8 by 3- 1/2 : 3.142 : 3.162 , 1.885 I1.898 :i9 P :10 :4 :13,440 17,880 : :14,400 : 20,000 : 2.011 : 2.025 : 19 $-1/8 .: 10 8 2.639 : 2,656 : 25 9-1/4 : 14 : 8 :29,000: 46,000 : 2.765 : 2.783 :27 $-3/8 : 18 : 4 :32,000 : 51
43、,000 : 3.393 : 3.414 :36 9-5/8 : 40 12 :66,000: 90,OOO : 3.518 3.540 : 36 9-5/8 : 42 i 8 :76,000 : 104,000 : 3.8.3 Rockwell hardness, - Wrenches shall show a Rockwell hardness of not less than 16 nor more than 45, on the C scale, on the handle and jaws. manner with + t e respective nominal width of
44、jaw opening shown in table III (see column one). 3 8.4 Markin . - Each wrench head shall be marked on one of the faces in a plain and permanent. 3.9 - Type E, wrenches, box, double head, 12 point, 15O. - 1 . “ . . I . . . . . . . . . . . . . . . . I . . _ . . - . I . . I . . . . . . 1 . I 3.9.1 Gene
45、ral. - Wrenches shall be suitable for hexagonal bolt heads and nuts. Each box opening shall contain 12-pwrrations. The surfaces of the serrations shall be broached in a smooth and well-defined manner. The corners of the serrations shaii be sharp. 3.9.2 Shape, dimensions, weight and bending moment. -
46、 Wrenches shall be similar to figure 5. They shall conform to the respective dimensions and weights and shall withstand, without permanent set, formation of cracks, or fracture of heads or handles, and without perceptible indentatlon or gouging of the bearing surface of the serrations, the respectiv
47、e bending moments shown in table N, as specified (see 6.1). I I . . . . . 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-Lb243A 51 m 9979906 0369041 O . . . . U “ . .- . . e- .-. . O s t( d . - . . . I 4 N I R 1 el I . . * kWer 1r-e . . B 8 E O c d mnm -peul pre esa wun -peulpue esa mnm -pue TT s Q) 1 1. . I! Q) d 3 - . =tww - v . . . . 8, . , ci o“ AS-iSGA I I I I Ir. -,;- :.= r(rlr(*UG - . . . 1 c O p: . 1 . I:-:
