1、 . MIL-T-B1714/7 57 6 7777706 0258487 O 6 b A -0767 bZL-T-E1914/7(AS ) li+ July 1976 MILITARY SPECIFICATION SHEET ._ TUBING, PLASTIC, FLEXIBLE, CONVOLWD, FLUORINATED ETHYLENE PROPYLENE, INTEGRAL BRAID This specification is approved for use by the Naval Air Systems Command, and is available for use
2、by all Departments and Agencies of the Department of Defense. The complete requirements for procuring the sleeving descried herein shall consist of this document and the issue in effect of MIL-T-81914(AS). Convolution type : Helical (see 3.3) Construction details: Braided convoluted tubing shall con
3、sist of an outer FEP jacket, the braid, and an inner FEP core. sions and tolerances, are located on Table I. by the procuring activity. copser wire, 34 AWG, ASTM B355, Class 4 or equal. have a minimum optical coverage of 85%. Continuous operating temperature : Available sizes, dimen- Lengths shzll b
4、e as specified Braid: The integral braid shall consist of two layers of nickel.coated Each lzyer of Iraid shall -67OC (-88OF) to +2OO0C (392OF) Color: Unless otherwise specified, the supplied color shall be black. Physical properties: General physical requirement ralues along with associated test co
5、nditions are located in Table II. Military part number: Consists of the basic number of this specifi- cation sheet and a dash number as shown below: I dent if i er (Table Class, when apolicable (wnen no classes are specified, the numeric O shall be used) Type of convolution ( 1-helical, 2-annular) S
6、pecification sheet Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-TJ-BLLL? 57 7777706 0258488 2 I Ident- ifier “*O1 *o2 *O3 *O4 *o5 *o6 *o7 *O8 *o9 “410 *u *12 *13 *14 *i5 Max. Inside Dia. ,188 ,281 ,312
7、375 ,437 ,500 ,625 750 t 875 1.000 1.125 1,250 1.500 1- 750 2.000 Min. Inside Dia. .181 ,273 ,364 .425 .485 .608 .730 .850 975 1.105 1.210 i. 440 1.690 1.940 303 - Max, Outer Dia. 39 50 .54 58 67 71 .83 99 1.20 1.30 1.47 1.61 2.09 1.84 2.34 TABLE I CONSTRUCTION DETAILS Wall Thickness Core Min. .o15
8、o15 .o15 ,015 .o15 .o15 .o15 .o15 .o15 .o15 ,015 .O15 . O15 .O15 . O15 Jacket Max. .o18 .o18 018 .o18 .o18 .o18 .o18 .o18 .o18 ,018 018 ,018 .o18 .O18 .O18 Convolutions Per Inch - + 1/2 6 6 6 6 6 6 6 5 5 5 4 4 4 4 4 Weight per 100 Feet ,Max. * 10.8 15.8 23.6 26.1 13.2 14.6 17.3 19.3 31.3 36.4 42.1
9、47.9 60.0 75.0 87.0 Min. Bend Radius 75 . 1.00 1.25 2.00 1.50 2.25 2.50 3.62 4.00 4.25 4.37 4.62 5-25 2.87 3.25 * - The asterisks shall be replaced by convolution type and class designation. Note: Unless otherwise specified all dimensions are in inches. TABLE II PHYSICAL PROPERTIES PROPERTY Construc
10、t ion details Stress in pounds 8 10% strain Specific gravity, max, Crush resistance , pounds Low temperature flexibility Heat shock Horizontal, min. Longitudinal change, %, max. REQUIREMENT In accordance with Table I 18 to 55 2.18 15 No cracking No drippings flowing or cracking 15 TEST ME“OD 4.6.1 4
11、6.2 4.6.3 4.6.4 4.6.5; 10,000 cycles 4.6.6; 250 22OC (482 +bF) for 4 hours - 2 J -. I Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 1-81914/7() TABLE II (Continued) PIIOPERTY Heat aging Stress in lbs at 1
12、0% strain, % of initiai value Fluid resistance Stress in lbs at 10% strain, max. % of original value Flammability Fungus resistance Dielectric breakdown Rl3QUIREMJINT 80 80 Non-f lamable Non-nutr i ent g25 22OC (437 +4 F) for 96 hours - 4.6.8 4.6.9 4.6.10 4.6.11 i/ See 6.4, Properties not tested. St
13、andard procurement: Procured as coils. Unless otherwise specified individual lengths shall be 18 feet. Preparing Activity (Project No. 9330-N752) Navy - AS *U& COVERNMENT PRINTMC OVPICE: 1976405-761/6771 3 Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
