3 4270 Series Electrically Conductive Connector Covers BT 0806-1101 Nov 2001 Technical Information Conductive Composite 3MTM 4270 Series Connector Covers feature a new unique Conductive Composite material. The material is made intrinsically conductive by uniformly distributing a conductive matrix of fibers during compounding. The covers are permanently volume conductive and free of carbon black particulate. The 4270 Series Covers do not leave black marks and are more suited to clean situations. Noncorrosive 4270 Series Connector Covers are noncorrosive and produce no visible corrosion when tested to Federal Test Method 101C using Kovar test plates. Military Application Conformability 4270 Series Circular Connectors Covers were designed to meet the requirements and intentions of MS90376, and MIL PRF 5501/31A or 32A. Prominent military contractors have qualified these materials to their own specifications and are encouraging their use. The material used in the covers were also selected for its resilience. Properly sized, the covers provide a snug, secure fit. This helps keep connectors clean and prevents the cover from accidentally falling off. BT 0806-1101 1/4 Material Properties Property Chemical Susceptibility Test Method Resistivity Contact Corrosivity Metod 3005 (Kovar plate) Crayoning Elongation Tensile Vicat Softening Out Gassing Typical Value 5 ASTM D991 FTM 101C <10 ohm-cm Pass 3M ASTM D638 ASTM D638 ASTM MD 1525 ASTM E595 Not visible 25% 1,03 N/cm2 96 C Pass Chemical Reactions Dilute Acids Dilute Alkalines Concentrated Acids Concentrated Alkalines Methanol, Ethanol, and Isopropanol Hydrocarbons Ketones Oil and Gasoline Slight Attack Slight Attack Severe Attack Severe Attack Resistant Slight Attack Dissolves Severe Attack Model 4270 Circular Cover 3M Logo Mil-129H Symbol Model Number "C" "D" "A" "B" Dimensions in inches (in) : 1 in = 25,4 mm Product Description Packaged 100/bag; 10 bags/box 4270 M5501-31A-250 4270 M5501/31A-313 4270 M5501/31A-375 4270 M5501/31A-413 4270 M5501/31A-480 4270 M5501/31A-500 4270 M5501/31A-530 4270 M5501/31A-605 4270 M5501/31A-655 4270 M5501/31A-720 4270 M5501/31A-785 4270 M5501/31A-850 4270 M5501/31A-893 4270 M5501/31A-973 4270 M5501/31A-1028 4270 M5501/31A-1093 4270 M5501/31A-1125 Packaged 50/bag; 10 bags/box 4270 M5501/31A-1150 4270 M5501/31A-1231 4270 M5501/31A-1270 4270 M5501/31A-1340 4270 M5501/31A-1390 4270 M5501/31A-1463 4270 M5501/31A-1540 4270 M5501/31A-1645 4270 M5501/31A-1715 2/4 Old Prod. Desc. "A" "B" "C" "D" 4270-4R 4270-5R 4270-6R 4270-8Y 4270-8R 4270-9R 4270-10Y 4270-10R 4270-12Y 4270-12R 4270-14Y 4270-14R 4270-16Y 4270-16R 4270-18Y 4270-18R 4270-19R .670 .670 .670 .670 .740 .750 .750 .840 .860 .970 1.031 1.125 1.125 1.220 1.250 1.330 1.400 .500 .500 .500 .625 .500 .500 .625 .500 .625 .500 .625 .500 .625 .500 .625 .562 .562 .250 .313 .375 .413 .480 .500 .530 .605 .655 .720 .785 .850 .893 .973 1.28 1.093 1.125 .336 .399 .461 .483 .540 .586 .595 .665 .715 .755 .845 .905 .963 1.035 1.088 1.155 1.213 4270-20Y 4270-20R 4270-22Y 4270-22R 4270-24Y 4270-24R 4270-25Y 4270-28Y 4270-28R 1.406 1.465 1.500 1.590 1.640 1.700 1.810 1.875 1.950 .625 .562 .625 .562 .625 .562 .625 .625 .562 1.150 1.231 1.270 1.340 1.390 1.463 1.540 1.645 1.715 1.215 1.301 1.340 1.410 1.460 1.533 1.580 1.718 1.790 BT 0806-1101 Model 4270 Circular Cover (continued) Dimensions in inches (in) : 1 in = 25,4 mm Product Description Old Prod. Desc. Packaged 25/bag; 10 bags/box 4270 M5501/31A-1890 4270 M5501/31A-1965 4270 M5501/31A-2140 4270 M5501/31A-2215 4270 M5501/31A-2380 4270 M5501/31A-2440 4270 M5501/31A-2630 4270 M5501/31A-2720 4270 M5501/31A-2880 4270 M5501/31A-2960 4270-32Y 4270-32R 4270-36Y 4270-36R 4270-40Y 4270-40R 4270-44Y 4270-44R 4270-48Y 4270-48R "A" "B" "C" "D" 2.125 2.220 2.340 2.435 2.600 2.660 2.875 2.960 3.125 3.225 .625 .562 .625 .600 .625 .600 .625 .600 .625 .600 1.890 1.965 2.140 2.215 2.380 2.440 2.630 2.720 2.880 2.960 1.970 2.040 2.210 2.290 2.450 2.530 2.700 2.812 2.950 3.050 Model 4272 "D" Type Cover Dimensions in inches (in) : 1 in = 25,4 mm Product Description "B" "C" "D" "E" "F" "G" "H" Nominal Dimensions Packaged 100/bag; 10 bags/box 4272 M5501/32A-50P 4272-50P 2.112 2.179 4272 M5501/32A-50S 4272-50S 2.049 2.116 4272 M5501/32A-37P 4272-37P 2.216 2.283 4272 M5501/32A-37S 4272-37S 2.143 2.210 4272 M5501/32A-25P 4272-25P 1.586 1.635 4272 M5501/32A-25S 4272-25S 1.495 1.562 4272 M5501/32A-15P 4272-15P 1.040 1.107 4272 M5501/32A-15S 4272-15S .955 1.022 4272 M5501/32A-9P 4272-9P .708 .775 4272 M5501/32A-9S 4272-9S .627 .694 2.279 2.216 2.383 2.310 1.735 1.662 1.177 1.122 .849 .794 .636 .574 .530 .462 .530 .462 .512 .462 .512 .462 .536 .474 .430 .362 .430 .362 .436 .362 .434 .362 .469 .407 .363 .295 .363 .295 .369 .295 .367 .295 .280 .280 .280 .280 .280 .280 .280 .280 .280 .280 .240 .240 .240 .240 .240 .240 .240 .240 .240 .240 BT 0806-1101 Old Prod. Desc. "A" 3/4 3 3M France Electronic Handling & Protection Boulevard de l'Oise 95006 Cergy Pontoise Cedex Tel. : + 33 (0) 1 30 31 68 09 Fax : + 33 (0) 1 30 31 61 81 SAS au capital de 8 400 000 euros 542 078 555 RCS Pontoise APE 246C n Identification TVA : FR 25 542 078 555 CCP n 30041 00001 0143470B020 03 Paris 4/4 Distributed by: SJM Eurostat UK Ltd. Countess Avenue Stanley Green Trading Estate Cheadle Hulme, Cheshire SK8 6QS United Kingdom Tel : + 44 (0) 161 485 5002 Fax : + 44 (0) 161 485 4678 SJM Eurostat 45 route d'Orgelet 39130 Pont de Poitte France Tel : + 33 (0) 3 84 87 02 39 Fax : + 33 (0) 3 84 48 30 00 Magnab Eurostat Skvasta Industriby 16BN 61192 Nykoping Sweden Tel : + 46 (0) 155 20 26 80 Fax : + 46 (0) 155 26 98 34 BT 0806-1101