Rubber Bushing for MS Connector Cable Clamp MMS3420

Brand :

MISUMI

Caution

Product Description

[Specifications]·Low-cost type MS cable clamp rubber bushing

<<Amazingly Low Price>>
● Check the price first.
● Can also be used for products from other manufacturers as long as they are cable clamps compliant with MIL standards.

· Rubber bushings come with the cable clamp. Select the same size when replacing rubber bushings. Select one size smaller than the accessory when using more than one.

MIL Standards MS Connector

Common Specifications

Applied Wire Size and Contact Size

Applicable wire coating strip length is about 1 to 3 mm plus the soldering hole length (L dimension) of the contact. In addition, the L dimension and D dimension are the same for the male connector (pin) and female connector (socket). Also, confirm whether the cable will fit into the internal diameter of the cable clamp when selecting cables.

Contact				Conforming wire size
Contact size	Soldering Hole Diameter øD (mm)	Pin Contact Contacting Part Diameter øA (mm)	L (mm)	AWG	Conductor Cross-Sectional Area (mm²)
#16	1.85	1.6	6.4	16 to 20	1.25 or Less
#12	2.95	2.4	9.5	12 to 14	3.5 or Less
#8	5.31	3.6	12.7	8 to 10	8 or Less
#4	8.45	5.7	15.9	4 to 6	22 or Less
#0	11.91	9.1	15.9	0 to 2	50 or Less

Electrical Characteristics

Contact Resistance	Contact size	Test Current DC	Voltage drop	Meets the left value when it is measured with the fall-of-potential test method where the male and female connectors are coupled in the same way as in use and a test current is energized.
	#16	20 A	21 mV or less
	#12	35 A	20 mV or less
	#8	60 A	12 mV or less
	#4	110 A	10 mV or less
	#0	200 A	10 mV or less

Mechanical Characteristics

	Test Classification Symbol			VAC (RMS)
Temperature Shock	Low Temperature			High Temperature			Consider the left low temperature and high temperature as one cycle and continuously perform 5 cycles. Leave low temperature and high temperature for 30 minutes or more.
	-55 +0°C -5°C			+125 +3°C -0°C
	(1) There is no crack or breakage in connectors. (2) The withstand voltage test is passed after completion.
Humidity Resistance	Meets the following withstand voltage.						After exposing a pair of a connected connector and panel mount to a temperature of 71 ± 2°C and a relative humidity of 95 ± 3% for 14 days, perform the withstand voltage test listed in the left table for 5 minutes without drying.
	INST			300
	A			750
	D			1,350
	E			1,875
	B			2,775
	C			4,500
Corrosion	(1) There is no corrosion to damage the connection or separation of connectors, or base metal exposure. (2) Contact resistance measurement						After exposure to a salt spray at a temperature of 35°C and a concentration of 5% for 48 hours, wash with water, dry by leaving in an air circulation tank for 12 hours at 38 ±3°C, and then perform contact resistance and withstand voltage tests.
	Contact size		Test Current		Voltage drop (or less)
	#16		20A		35 mV
	#12		35		30
	#8		60		25
	#4		110		20
	#0		200		20
	(3) Meets the following withstand voltage.
	Test Classification Symbol	VAC (RMS)		Classification Symbol		VAC (RMS)
	INST	400		E		2,500
	A	1,000		B		3,500
	D	1,800		C		6,000

Environmental Characteristics

Contact Single Unit Insertion/Removal Force	Contact size	Average	Maximum	Minimum	Measure insertion/removal force with a randomly chosen male and female. The average force must be the average value shown at left or less, 96% of all values must be the maximum value or less, and all values must be the minimum value or more.
	#16	0.95 kg	1.36 kg	0.11 kg
	#12	1.59	2.27	0.23
	#8	3.18	4.54	0.34
	#4	4.76	6.8	0.45
	#0	6.35	9.07	0.91
Contact Holding Force	Contact size	Axial Load (kg)	Contact size	Axial Load (kg)	Withstands axial load in both directions shown at left.
	#16	4.5	#4	9.1
	#12	6.8	#0	11.3
	#8	9.1
Vibration	(1) There is no current break for 10 μsec or more during the test. (2) The withstand voltage test is passed after completion. (3) There is no disconnection, crack or breakage in any part.				Couple a connector and a panel mount connected with wire in the normal way and perform a vibration test with MIL-STD-1344. Apply 100 mA current to the connector, check for current break in an appropriate way, and then perform a withstand voltage test and an external appearance test.
Shock	(1) Meets the required contact resistance after completion. (2) There is no crack, breakage, or looseness in any part.				Apply an acceleration of 50 G to the connector and the panel mount connected with wire at an angle of 90 degrees to each axial direction.
Life	(1) Meets the contact resistance requirements. (2) There is no electrical or mechanical abnormality.				Remove the coupling nut from the connector and perform insertion and removal 500 times at a speed not above 600 times per hour.

Contact arrangement table (in order of core number), a view from the coupling surface of the male (pin) connector.

Arrangement No.

The shell size of the entire connector is at left. The arrangement number of its contacts is at right. Together they comprise the Arrangement No.

Configuration of Number of Cores

The size per contact is shown on the right. The number of contacts is shown on the left.
Configuration of Number of Cores

Determine the model according to the operating environment, such as voltage, current, number of cores, or size, when ordering parts.

Arrangement No.		Contact Shape	Contact Configuration			Rated Current (A) (Note 1)	Insulation Resistance MΩ (or more)	Rated Voltage (2) (3)		Test Classification (Note 4)
Shell Size	Arrangement Number	Contact Shape	Total Number of Cores	Configuration of Number of Cores	Contact Size	Rated Current (A) (Note 1)	Insulation Resistance MΩ (or more)	VDC or less Characters are Contact No.	VAC (RMS) or less Characters are Contact No. ( ) is Withstand Voltage / VAC (RMS)	Test Classification (Note 4)
10SL	3	P Male (Pin) S Female (Socket)	3	3	#16	13	5,000	700	500 (2,000)	A
10SL	4		2	2
12S	3		2	2
14S	1		3	3
	2		4	4				250	200 (1,000)	INST
	5		5	5
	6		6	6
	7		3	3				700	500 (2,000)	A
	9		2	2
16S	1		7	7
	5		3	3
	8		5	5
16	10		3	3	#12	23
18	1		10	10	#16	13		BCFG-700, Other-250	BCFG-500 (2,000),Other-200 (1,000)	A (BCFG) INST (Other)
	4		4	4	#16	13		1,250	900 (2,800)	D
	5		3	2	#12	23
	5		3	1	#16	13
	8		8	1	#12	23		700	500 (2,000)	A
	8		8	7	#16	13
	10		4	4	#12	23
	11		5	5	#12	23
	12		6	6	#16	13
	19		10	10
	20		5	5
	21		3	3	#12	23
	22		3	3	#16	13		1,250	900 (2,800)	D
20	2		1	1	#0	150		ABHG-1250, CDEF-700	ABHG-900 (2,800), CDEF-500 (2,000)	D (ABHG) A (CDEF)
	4		4	4	#12	23		700	500 (2,000)	A
	7		8	8	#16	13
	15		7	7	#12	23
	16		9	2	#12	23
	16		9	7	#16	13
	17		6	5	#12	23
	17		6	1	#16	13
	18		9	3	#12	23
	18		9	6	#16	13
	22		6	3	#8	46
	22		6	3	#16	13
	23		2	2	#8	46
	27		14	14	#16	13
	29		17	17	#16	13
22	2		3	3	#8	46		1,250	900 (2,800)	D
	10		4	4	#16	13		1,750	1,250 (3,500)	E
	14		19	19				700	500 (2,000)	A
	19		14	14
	22		4	4	#8	46
	23		8	8	#12	23		H-1250, Other-700	H-900 (2,800), Other-500 (2,000)	D (H) A (Other)
	28		7	7				700	500 (2,000)	A
24	2		7	7				1,250	900 (2,800)	D
	5		16	16	#16	13		700	500 (2,000)	A
	7		16	2	#12	23
	7		16	14	#16	13
	10		7	7	#8	46
	11		9	3	#8	46
	11		9	6	#12	23
	20		11	2	#12	23		1,250	900 (2,800)	D
	20		11	9	#16	13
	22		4	4	#8	46
	28		24	24	#16	13		250	200 (1000)	INST
28	6	P Male (Pin) S Female (Socket)	3	3	#4	80	5,000	1,250	900 (2,800)	D
	10		7	2	#4	80		G-1250, Other-700	G-900 (2,800), 2 #8 46 Other-500 (2,000)	D (G) A (Other)
				2	#8	46
				3	#12	13
	11		22	4	#12	13		700	500 (2,000)	A
	11		22	18	#16	13
	12		26	26
	15		35	35
	16		20	20
	20		14	10	#12	23
	20		14	4	#16	13
	21		37	37	#16	13
32	1		5	2	#0	150		A-1750, Other-1250	A-1250 (3,500), Other-900 (2,800)	(A) D (Other)
	1		5	3	#12	23		A-1750, Other-1250	A-1250 (3,500), Other-900 (2,800)	(A) D (Other)
	2		5	3	#4	80		1,750	1,250 (3,500)	E
	2		5	2	#16	13		1,750	1,250 (3,500)	E
	5		2	2	#0	150		1,250	900 (2,800)	D
	7		35	7	#12	23		ABhj-250, Other-700	ABhj-200 (1,000) Other-500 (2,000)	INST (ABhj) A (Other)
	7		35	28	#16	13		ABhj-250, Other-700	ABhj-200 (1,000) Other-500 (2,000)	INST (ABhj) A (Other)
	8		30	6	#12	23		700	500 (2,000)	A
	8		30	24	#16	13		700	500 (2,000)	A
	9		14	2	#4	80		1,250	900 (2,800)	D
	9		14	12	#16	13		1,250	900 (2,800)	D
32A	10		54	54	#16	13		700	500 (2,000)	A
32	17		4	4	#4	80		1,250	900 (2,800)	D
32	414		52	52	#16	13		700	500 (2,000)	A
36	3		6	3	#0	150		1,250	900 (2,800)	D
	3		6	3	#12	23		1,250	900 (2,800)	D
	4		3	3	#0	150		A-1250, BC-700	A-900 (2,800), BC-500 (2,000)	D (A) A (BC)
	5		4	4	#0	150		700	500 (2,000)	A
	9		31	1	#4	80
				2	#8	46
				14	#12	23
				14	#16	13
	10		48	48
	73		73	73
48	5		100	1	#8	46
				9	#12	23
				90	#16	13

*1: The rated current is the value of the contact as a single unit when each contact is embedded in a connector. Note that the rated current will not change depending on voltage.
*2: The rated voltage will change depending on contact arrangement rather than on the size of contacts or shells.
*3 The rated voltage may be different with each contact even in the same connector.
*4 Characteristics will change depending on test classification.

Key Position (Angle) Change for Prevention of Mistaken Insertion

Straight Connector

Outline Drawing

Shell Size	Coupling Screw A Thread	Dimensions (mm)
Shell Size	Coupling Screw A Thread	Cable Entry øB ±0.3	Effective Thread Length J ±0.3	Overall Length L or less	Outer Diameter Q ±0.8	Conduit Screw V Thread	Thread Length W or more
10SL	5/8-24UNEF-2B	9.6	13.49	34.9	22.22	5/8-24UNEF-2A	9.53
12S	3/4-20UNEF-2B	9.6	13.5	42.8	25.4	5/8-24UNEF-2A	9.5
14S	7/8-20UNEF-2B	12.5	13.5	42.8	28.6	3/4-20UNEF-2A	9.5
16S	1-20UNEF-2B	15.6	13.5	42.8	31.8	7/8-20UNEF-2A	9.5
16	1-20UNEF-2B	15.6	18.3	52.4	31.8	7/8-20UNEF-2A	9.5
18	1-1/8-18UNEF-2B	20.2	18.3	52.4	34.1	1-20UNEF-2A	9.5
20	1-1/4-18UNEF-2B	23.0	18.3	55.6	37.3	1-3/16-18UNEF-2A	9.5
22	1-3/8-18UNEF-2B	23.2	18.3	55.6	40.5	1-3/16-18UNEF-2A	9.5
24	1-1/2-18UNEF-2B	29.5	18.3	58.7	43.7	1-7/16-18UNEF-2A	9.5
28	1-3/4-18UNS-2B	29.8	18.3	58.7	50.0	1-7/16-18UNEF-2A	9.5
32	2-18UNS-2B	37.5	18.3	61.9	56.4	1-3/4-18UNS-2A	11.1
36	2-1/4-16UN-2B	43.8	18.3	61.9	62.7	2-18UNS-2A	12.7
48	3-16UN-2B	69.1	18.3	65.1	81.8	3-16UN-2A	15.9

Angle Connector

Outline Drawing

Shell Size	Coupling Screw A Thread	Dimensions (mm)
Shell Size	Coupling Screw A Thread	Cable Entry B ±0.3	Effective Thread Length J ±0.3	Overall Length L or less	M ±0.8	Outer Diameter Q ±0.8	U ±0.8	Conduit Screw V Thread	Thread Length W or more
12S	3/4-20UNEF-2B	9.6	13.5	50.8	41.7	25.4	25.4	5/8-24UNEF-2A	9.5
14S	7/8-20UNEF-2B	12.5	13.5	54.0	43.3	28.6	27.0	3/4-20UNEF-2A	9.5
16S	1-20UNEF-2B	15.6	13.5	60.3	48.0	31.8	28.6	7/8-20UNEF-2A	9.5
16	1-20UNEF-2B	15.6	18.3	65.1	52.8	31.8	28.6	7/8-20UNEF-2A	9.5
18	1-1/8-18UNEF-2B	18.6	18.3	68.3	54.4	34.1	32.1	1-20UNEF-2A	9.5
20	1-1/4-18UNEF-2B	23.0	18.3	77.0	60.7	37.3	33.7	1-3/16-18UNEF-2A	9.5
22	1-3/8-18UNEF-2B	23.2	18.3	77.0	60.7	40.5	33.3	1-3/16-18UNEF-2A	9.5
24	1-1/2-18UNEF-2B	28.0	18.3	86.5	67.1	43.7	34.9	1-7/16-18UNEF-2A	9.5
28	1-3/4-18UNS-2B	28.2	18.3	86.5	67.1	50.0	38.5	1-7/16-18UNEF-2A	9.5
32,32A	2-18UNS-2B	35.9	18.3	95.2	71.8	56.4	46.4	1-3/4-18UNS-2A	11.1
36	2-1/4-16UN-2B	42.2	18.3	100.0	73.4	62.7	51.2	2-18UNS-2A	12.7
48	3-16UN-2B	65.9	18.3	125.4	86.5	81.8	59.1	3-16UN-2A	15.9

Relay Connector

Outline Drawing

Shell Size	Coupling Screw A Thread	Dimensions (mm)
Shell Size	Coupling Screw A Thread	Effective Thread B or more	Overall Length L or less	Length to Flange M +0.4 -0	Outer Diameter N or less	Conduit Screw V Thread	Thread Length W or more
12S	3/4-20UNEF-2A	9.5	42.88	14.3	26.97	5/8-24UNEF-2A	25.4
14S	7/8-20UNEF-2A	9.5	42.88	14.3	29.36	3/4-20UNEF-2A	27.0
16S	1-20UNEF-2A	9.5	42.88	14.3	31.75	7/8-20UNEF-2A	28.6
16	1-20UNEF-2A	15.9	52.37	19.0	31.75	7/8-20UNEF-2A	28.6
18	1-1/8-18UNEF-2A	15.9	52.37	19.0	34.14	1-20UNEF-2A	32.1
20	1-1/4-18UNEF-2A	15.9	55.58	19.0	37.31	1-3/16-18UNEF-2A	33.7
22	1-3/8-18UNEF-2A	15.9	55.58	19.0	40.49	1-3/16-18UNEF-2A	33.3
24	1-1/2-18UNEF-2A	15.9	58.72	19.0	43.66	1-7/16-18UNEF-2A	34.9
28	1-3/4-18UNS-2A	15.9	58.72	19.0	50.01	1-7/16-18UNEF-2A	38.5
32,32A	2-18UNS-2A	15.9	61.93	19.0	56.36	1-3/4UNS-2A	46.4
36	2-1/4-16UN-2A	15.9	61.93	19.0	62.71	2-18UNS-2A	51.2
48	3-16UN-2A	15.9	65.07	15.9	81.76	3-16UN-2A	59.1

Panel Mount

Outline Drawing

Shell Size	A Thread	Dimensions (mm)
Shell Size	A Thread	B or more	K or less	L or less	M +0.79 -0	øN +0 -4.78	R ±0.13	S ±0.79	øT +0.25 -0.13
10SL	5/8-24UNEF-2A	9.53	2.1	21.9	14.28	15.9	18.26	25.4	3.05
12S	3/4-20UNEF-2A	9.52	2.4	24.3	14.27	19.86	20.62	27.79	3.05
14S	7/8-20UNEF-2A	9.52	2.4	24.3	14.27	23.01	23.01	30.18	3.05
16S	1-20UNEF-2A	9.52	2.4	24.3	14.27	24.61	24.61	32.54	3.05
16	1-20UNEF-2A	15.88	2.4	29.1	19.05	24.61	24.61	32.54	3.05
18	1-1/8-18UNEF-2A	15.88	3.0	28.6	19.05	26.97	26.97	34.92	3.05
20	1-1/4-18UNEF-2A	15.88	3.0	29.4	19.05	29.36	29.36	38.10	3.05
22	1-3/8-18UNEF-2A	15.88	3.0	29.4	19.05	31.75	31.75	41.28	3.05
24	1-1/2-18UNEF-2A	15.88	3.0	33.4	20.62	34.92	34.92	44.45	3.73
28	1-3/4-18UNS-2A	15.88	3.0	33.4	20.62	39.67	39.67	50.80	3.73
32,32A	2-18UNS-2A	15.88	4.3	33.4	22.22	44.45	44.45	57.15	4.39
36	2-1/4-16UN-2A	15.88	4.3	33.4	22.22	49.23	49.23	63.50	4.39
48	3-16UN-2A	15.88	4.3	34.2	22.22	66.68	66.68	82.55	4.39

Current Capacity Applicable to Entire Connector

The rated current value per contact will vary depending on contact size, but the current capacity which can be applied to the entire connector will vary depending on the total number of cores. Since calculation differs for 14 cores or less and for 15 cores or more, they will be explained separately.

(1) For 14 Cores or Less

The current capacity applicable to the whole connector is calculated by multiplying the rated current value per contact when embedded by the number of cores, and then multiplying it with the reduction ratio in the following figure.

■ Current Reduction Ratio by Number of Cores Table

Total Number of Cores	1	2	3	4	5	6	7	8	9	10	11	12	13	14
Reduction Ratio (%)	1	0.943	0.886	0.829	0.771	0.714	0.657	0.6	0.543	0.486	0.429	0.371	0.314	0.257

Example 1: For connectors with the same contact size
Rated current per contact x number of cores x reduction ratio = entire connector allowable current
13 A x 2 cores x 0.943 = 24.518 A
(For Arrangement No. 12S-3)
Therefore, 24.518 A can be applied to the whole connector.

Example 2: For connectors with different contact sizes
(A contact rated current x number of A contact cores + B contact rated current x number of B contact cores) x reduction ratio (for total number of cores) = entire connector allowable current
(23 A x 2 cores + 13 A x 7 cores) x 0.543 = 74.391 A
(For Arrangement No. 20-16)
Therefore, 74.391 A can be applied to the whole connector.

(2) For 15 Cores or More

The current capacity applicable to the entire connector is calculated by multiplying the rated current value per contact by the number of cores and then multiplying it by 20%.

Example 1: For connectors with the same contact size
Contact rated current x number of cores x 20% = entire connector allowable current
13 A x 17 cores x 0.2 = 44.2 A
(For Arrangement No. 20-29)
Therefore, 44.2 A can be applied to the whole connector.

Example 2: For connectors with different contact sizes
(A contact rated current x number of A contact cores + B contact rated current x number of B contact cores) x 20% = entire connector allowable current
(23 A x 4 cores + 13 A x 18 cores) x 0.2 = 65.2 A
(For Arrangement No. 28-11)
Therefore, 65.2 A can be applied to the whole connector.

Soldering Method