Companion Flanges

SERIES	O.D.	PILOT	S	B.C.	QTY	SIZE	SPLINE	OVERALL	THRU	HUB	SURFACE	PART NUMBER
	F	P		BC	BH	BH		L	L1	H
1100	3.500	2.250	F	2.750	4	.313	1.00-.25k	2.125	1.500	1.8750	TURNED	1-1-143
1310	3.875	2.375	F	3.125	4	.375	0.87-13	2.000		2.4375	TURNED	131N-20-13420
1310	3.875	2.375	F	3.125	4	.375	1.50-.37K	2.625	2.000	2.3750	GROUND	2-1-684
1310	3.875	2.375	F	3.125	4	.391	1.50-10	2.313	1.780	2.2090	GROUND	131N-20-5680
1310	3.875	2.375	F	3.125	4	.406	1.75-13	2.375	2.281		TURNED	131N-20-12900
1350	4.625	2.750	F	3.750	4	.438	1.00	3.438	2.625	2.8750	TURNED	3-1-303
1350	4.625	2.750	F	3.750	4	.438	1.18-6	2.000	1.469	1.6920	POLISHED	135N-20-8300
1350	4.625	2.750	F	3.750	4	.438	1.37-.31K	2.563	2.000	2.8750	TURNED	135N-20-9410
1350	4.625	2.750	F	3.750	4	.438	1.37-.31K	2.560	2.000	2.8750	TURNED	135N-20-9910
1350	4.625	2.750	F	3.750	4	.438	1.37-.37K	2.563	2.000	2.2500	GROUND	135N-1-584
1350	4.625	2.750	F	3.750	4	.438	1.37-10	2.438	2.000	2.1094	GROUND	3-1-2011
1350	4.625	2.750	F	3.750	4	.438	1.37-10	2.438	2.000	2.1094	GROUND	141N-20-10910
1350	4.625	2.750	F	3.750	4	.438	1.37-10	2.438	2.000	2.1250	GROUND	3-1-751
1350	4.625	2.750	F	3.750	4	.438	1.37-10	2.688	2.000	2.0000	TURNED	141N-20-12370
1350	4.625	2.750	F	3.750	4	.438	1.37-10	2.688	2.000	2.1250	TURNED	141N-20-12380
1350	4.625	2.750	F	3.750	4	.453	1.37-10	3.000	2.000	2.1300	POLISHED	3-1-3451X
1350	4.625	2.750	F	3.750	4	.438	1.40-32	2.500	2.000	2.1250	POLISHED	135N-20-12560
1350	4.625	2.750	F	3.750	4	.453	1.50-.37	3.060	2.190	2.2500	GROUND	135N-20-7030
1350	4.563	2.750	F	3.750	4	.438	1.50-.37K	2.000	2.000	2.8750	TURNED	3-1-1013-8
1350	4.625	2.750	F	3.75	4	.438	1.50-10	2.250	1.750	2.1875		135N-20-15320
1350	4.625	2.750	F	3.750	4	.438	1.50-10	2.438	2.000	2.1250	GROUND	3-1-2431
1350	4.625	2.750	F	3.750	4	.438	1.50-10	2.563	2.000	2.1250	GROUND	3-1-2181
1350	4.625	2.750	F	3.750	4	.438	1.50-10	2.563	2.000	2.1250	GROUND	3-1-1151
1350	4.625	2.750	F	3.750	4	.453	1.50-10	2.625	1.750	2.2550	GROUND	135N-20-4520
1350	4.625	2.750	F	3.750	4	.438	1.50-10	2.688	2.000	2.1250	POLISHED	141N-20-12390
1350	4.625	2.750	F	3.750	4	.438	1.50-10	2.688	2.000	2.1875	TURNED	135N-20-13110
1350	4.625	2.750	F	3.750	4	.453	1.50-10	3.060	2.188	2.2550	GROUND	135N-20-0350
1350	4.563	2.750	F	3.75	4	.438	1.50-17	2.000	1.934	2.8750		135N-20-15270
1350	4.063	2.750	F	3.750	4	.438	1.62-.31K	3.438	2.625	2.4380	TURNED	135N-20-8570
1350	4.625	2.750	F	3.750	4	.438	1.75-.37K	3.438	2.625	2.8750	TURNED	135N-20-9900
1350	4.563	2.750	F	3.750	4	.438	1.75-.43K	3.000	2.250		ROUGH	135N-20-7840
1350	4.625	2.750	F	3.750	4	.438	1.75-10	2.438	2.000	2.6250	GROUND	141N-1-3571
1350	4.625	2.750	F	3.750	4	.438	1.75-10	2.438	2.000	2.6250	GROUND	3-1-3571
1350	4.625	2.750	F	3.750	4	.438	1.75-10	2.813	2.188	2.2500	GROUND	3-1-3211
1350	4.625	2.750	F	3.750	4	.438	1.75-10	2.875	2.250	2.5000	TURNED	3-1-3111
1350	4.625	2.750	F	3.750	4	.438	1.75-10	2.875	2.250	2.5000	GROUND	3-1-3121X
1350	4.625	2.750	F	3.750	4	.438	1.75-10	3.125	2.250	2.6250	GROUND	3-1-1521
1350	4.563	2.750	F	3.750	4	7/16-20	12.25-.50K	3.000	3.000	4.5625	TURNED	3-1-1023-10
1480	5.875	3.750	F	4.750	4	.500	1.75-10	2.875	2.745	2.6250	GROUND	148N-20-16630
1550	5.875	3.750	F	4.750	4	.500	1.25-10	2.000	1.750	2.5000	TURNED	148N-20-5120
1550	5.875	3.750	F	4.75	4	0.5	1.37-10	2.125	2.125	2.1250		4-1-1011
1550	5.875	3.750	F	4.750	4	.500	1.37-10	2.625	2.000	2.1094	GROUND	4-1-3151
1550	5.750	3.750	F	4.750	4	.500	1.37-10	2.630	2.000	2.1280	GROUND	155N-20-6980
1550	5.875	3.750	F	4.750	4	.500	1.50-10	2.500	2.000	2.2410	GROUND	148N-1-3441
1550	5.875	3.750	F	4.750	4	.500	1.50-10	2.500	2.000	2.2500	GROUND	4-1-3441
1550	5.875	3.750	F	4.750	4	.500	1.50-10	2.625	2.000	2.1250	GROUND	4-1-2701
1550	5.750	3.750	M	4.750	4	.500	1.517-35	2.500	2.000	2.1250	GROUND	155N-20-14320
1550	5.750	3.750	M	4.750	4	.500	1.52-35	2.500	2.000	2.5000	POLISHED	155N-20-13640
1550	5.875	3.750	F	4.750	4	.500	1.62-10	2.750	2.125	2.3750	GROUND	4-1-2751
1550	5.875	3.750	F	4.750	4	.500	1.75-10	2.688	2.063	2.5000	TURNED	155N-20-13430
1550	4.750	3.750	M	4.750	4	.500	1.78-34	2.500	2.000	2.5000	GROUND	155N-20-14260
1550	5.750	3.750	M	4.75	4	.500	1.79-34	3.313	2.250	2.5000		155N-20-15470
1550	5.750	3.750	F	4.750	4	.500	1.79-34	2.500	2.000	2.5000	GROUND	155N-20-16720
1550	5.875	3.750	F	4.750	4	.500	2.00-10	3.625	3.000	2.9375	GROUND	4-1-2361
1550	5.875	3.750	F	4.750	4	.500	2.00-6	3.625	2.250	3.0030	POLISHED	148N-1-720W
1550	5.875	3.750	F	4.750	4	.500	2.16-.63K	3.500	3.500	3.7500	GROUND	155N-20-12280
1550	5.875	3.750	F	4.750	4	.500	2.25-10	2.625	2.000	2.7968	GROUND	4-1-2591
1550	5.875	3.750	F	4.750	4	.500	2.25-10	3.688	3.000	3.5000	GROUND	155N-20-12270
1610	6.875	6.625	F	6.125	8	.375	1.25	3.500	3.500	5.2500	TURNED	16N-1-873
1610	6.875	6.625	F	6.125	8	.388	1.271-19	2.560	1.440	1.9000	TURNED	161N-20-15640
1610	6.875	6.625	M	6.125	8	.375	1.50-10	2.750	2.063	2.2500	TURNED	16N-20-13500
1610	6.875	6.625	F	6.125	8	.375	1.50-10	2.750	2.063	2.2500		16N-1-1291
1610	6.875	6.625	F	6.125	8	.375	1.50-10	2.938	2.188	2.1250	GROUND	16N-20-6960
1610	6.875	6.625	F	6.125	8	.375	1.75-10	2.563	2.000	2.2550	POLISHED	16N-1-611M
1610	6.875	6.625	F	6.125	8	.375	1.75-10	2.813	2.250	3.0000	GROUND	16N-1-611
1610	6.875	6.625	F	6.125	8	.375	1.75-10	2.938	2.188	2.2550	GROUND	16N-20-6950
1610	6.875	6.625	F	6.125	8	.375	1.75-10	2.938	2.250	2.7500	GROUND	16N-1-2321
1610	6.875	6.625	F	6.125	8	.375	1.78-34	4.250	2.781	2.5625	GROUND	16N-1-5121X
1610	6.875	6.625	F	6.125	8	.375	1.96-10	3.000	2.250	2.5000	GROUND	16N-1-4291
1610	6.875	6.625	F	6.125	8	.375	2.00-10	3.625	3.000	2.7500	GROUND	16N-1-3141
1610	6.875	6.625	F	6.125	8	.375	2.12-.50K	3.500	3.500	5.2500	TURNED	16N-1-873-2
1610	6.875	6.625	F	6.125	8	.375	2.14-41	3.750	2.500	2.9400	POLISHED	16N-20-1
1610	6.875	6.625	F	6.125	8	.375	2.21-6	4.469	3.250	3.0000	GROUND	16N-1-2211
1610	6.875	6.625	M	6.125	8	.375	2.22-6	3.875	3.250	3.0000	GROUND	16N-1-2541
1610	6.875	6.625	F	6.125	8	.375	2.25-10	3.625	3.000	3.5050	POLISHED	16N-1-1581
1610	6.875	6.625	F	6.125	8	.375	2.44-63K	3.500	3.500	5.2500	TURNED	16N-1-873-5
1610	6.875	6.625	F	6.125	8	.375	2.75-10	3.688	3.000	3.5000	TURNED	16N-20-12240
1610	6.875	6.625	F	6.125	8	.375	2.94-.63K	3.000	3.406	5.2500		16N-20-12190
1710	8.000	7.750	F	7.250	8	.375	1.53-14	4.250	2.000	3.0000	TURNED	17N-20-3070
1710	8.000	7.750	F	7.250	8	.375	1.78-34	3.906	2.750	2.5625	GROUND	17N-1-4701X
1710	8.000	7.750	F	7.250	8	.375	1.96-10	2.688	2.063	2.6250	GROUND	17N-1-2131
1710	8.000	7.750	F	7.250	8	.375	1.96-10	2.688	2.250	2.6250	GROUND	17N-1-5241
1710	8.000	7.750	F	7.250	8	.375	2.00-.50K	3.688	3.000	3.2500	GROUND	17N-1-1144
1710	8.000	7.750	F	7.250	8	.375	2.00-10	3.250	2.563	2.7500	GROUND	17N-1-2791
1710	8.000	7.750	F	7.250	8	.375	2.00-10	3.438	2.250	2.7500	GROUND	17N-20-7150
1710	8.000	7.750	F	7.250	8	.375	2.00-10	3.688	3.000	2.7500	GROUND	17N-1-2221
1710	8.000	7.750	F	7.250	8	.375	2.00-10	3.688	3.000	2.9450	GROUND	17N-20-7610
1710	8.000	7.750	F	7.250	8	.375	2.18-.50K	4.000	4.000	6.3750	TURNED	17N-20-12580
1710	8.000	7.750	F	7.250	8	.375	2.25-.56K	3.688	3.000	3.5546	GROUND	17N-1-1074
1710	8.000	7.750	F	7.250	8	.375	2.25-.63K	4.000	4.000	6.3750	TURNED	17N-20-12570
1710	8.000	6.438	M	7.250	8	3/8-24	2.25-10	4.969	3.000	3.5000	GROUND	17N-1-4131
1710	8.000	7.250	F	7.250	8	.375	2.25-10	3.688	3.000	3.5000	GROUND	17N-1-951
1710	8.000	7.750	F	7.250	8	.375	2.25-10	4.438	3.625	3.0000	GROUND	17N-1-4301
1710	8.000	7.750	F	7.250	8	.375	2.39-46	4.594	3.375	3.5000	GROUND	17N-1-4671
1710	8.000	7.750	F	7.250	8	.377	2.50-10	3.620	2.410	3.5000	GROUND	17N-20-14120
1710	8.000	6.437	M	7.250	8	.375	2.50-10	3.313	2.688	2.7530	GROUND	17N-20-1610
1710	8.000	7.750	F	7.250	8	.375	2.68-.62K	4.000	4.000	6.3750	TURNED	17N-20-8530
1710	8.000	7.750	F	7.250	8	.453	2.68-.75K	3.906	3.906	6.3750	TURNED	17N-20-4100
1710	8.000	7.750	F	7.250	8	.375	2.75-10	3.688	3.000	3.5000	GROUND	17N-10-2320
1710	8.000	8.000	M	7.250	8	.375	2.75-10	3.688	3.000	3.5000	GROUND	17N-1-2381
1710	8.000	7.750	F	7.250	8	.375	3.93-.75K	4.000	4.000	6.3750	TURNED	17N-20-8540
1710	8.000	7.750	F	7.250	8	.375	3.91-1.00K	4.000	4.000	6.3750	TURNED	17N-20-8550
1710	8.000	7.750	F	7.250	8	.375	3.93B	4.000	4.000	6.3750	TURNED	17N-20-11770
1710	8.000	5.250	F	7.250	8	.438	3.94-1.00K	4.000	3.500	6.3750	TURNED	17N-20-12300
1810	8.000	7.750	F	7.250	12	.438	2.00-10	3.625	3.000	3.5000	GROUND	18N-1-1601X
1810	8.000	7.750	F	7.250	12	.438	2.00-10	3.688	3.000	2.9375	GROUND	18N-1-221
1810	8.000	7.750	F	7.250	12	.438	2.25-10	3.688	3.000	3.5000	GROUND	18N-1-151
1810	8.000	7.750	F	7.250	12	.438	2.36-18	4.031	3.375	3.5000	GROUND	18N-1-1801
1810	8.000	7.750	F	7.250	12	.438	2.37-20		2.344	3.5000	GROUND	18N-1-2161
1810	8.000	7.750	F	7.250	12	.438	2.50-.62K	4.000	4.000	6.3750	TURNED	18N-1-533-2
1810	8.000	7.750	F	7.250	12	.438	2.75-10	3.688	3.125	3.7500	POLISHED	18N-1-1651
1810	8.000	7.750	F	7.250	12	.438	2.75-10	4.060	3.000	3.5000	POLISHED	18N-1-741
1810	8.000	7.750	F	7.250	12	.438	3.00-.75K	4.000	4.000	6.3750	TURNED	18N-1-533-5
1810	8.000	7.750	F	7.250	12	.438	3.00-10	3.750	3.060	4.0030	GROUND	280.03021
1810	8.000	7.750	F	7.250	12	.438	3.44-.88K	4.000	4.000	6.3750	TURNED	18N-20-9400
1810	8.000	7.750	F	7.725	12	7/16-20	3.50	6.000	6.000	8.0000		18N-1-543
1810	8.000	7.750	F	7.250	12	.438	3.50-.87K	4.060	3.000	5.7500	TURNED	18N-20-2740
1810	8.000	7.750	F	7.25	12	0.44	3.94-1.00K	8.000	8.000	6.3750		18N-20-15330
1810	8.000	7.750	F	7.250	12	.438	3.94-1.00K	4.000	4.000	6.3750	TURNED	18N-1-533-7
1880	9.469	7.000	F	8.250	8	.625	2.50-10	4.750	3.000	3.5050	POLISHED	185N-1-81
1880	9.469	7.000	F	8.250	8	.625	2.75-10	4.188	3.125	3.7530	GROUND	8-1-201JN
1880	9.625	7.000	F	8.250	8	.625	2.75-10	4.188	3.250	3.7500	GROUND	185N-1-211X
1880	9.310	7.000	F	8.250	8	.625	3.00-10	4.750	3.000	4.0000	POLISHED	185N-20-16110
1880	8.000	7.750	F	8.250	8	.625	3.50-.875K	5.000	4.875	6.8750	TURNED	185N-20-15910
1880	9.625	7.000	F	8.250	8	.625	3.94-1.00K	5.000	5.000	6.8750		185N-1-333-5
1880	9.563	7.000	F	8.250	8	.625	4.00-1.00K	5.00	4.875	6.8750		185N-20-15900
	4.720	3.126	M	3.969	4	7/16-20	1.60-15	3.156	1.750	2.1270	GROUND	20-4080
	5.970	2.250	M	5.000	6	0.5	1.75-10	2.250	2.250	1.9750	TURNED	20-8100
	8.000	6.438	M	7.250	8	3/8-24	1.75-10	3.688	2.000	3.1250	TURNED	20-12930
	5.905	3.543	M	5.118	8	.483	1.25-13	3.469	2.677	3.3400	TURNED	20-8180
	6.000	5.625	F	4.700	6	1/2-20	1.75-6	3.875	2.250	2.5000		20-11310
	6.225	5.087	M	5.586	12	.344	2.00-10	3.000	3.000	2.7510	GROUND	20-2730
	7.750	7.750	M	6.250	4	.875	2.00-10	3.875	3.000	3.2530	GROUND	5WCS32-60
	8.500	5.875	M	7.250	12	.656	2.02-39	3.125	2.437	2.7500	GROUND	20-0050
	5.906	3.543	M	5.118	8	.476	2.04-15	3.540	2.750	3.3438	TURNED	20-13050
	7.093	4.329	F	6.122	8	.563	2.50-10	3.500	3.375	5.2500		20-11580
	9.843	5.512	M	8.584	8	.708	2.75-10	4.000	3.000	3.7550	GROUND	20-5690

Standard Flange – SF

Rough Bore Diameter	3/4"	3/4"	1 1/4"	1 1/4"	1 1/4"	1 1/4"
Max Bore & Key	1 11/16" x 3/8"	1 7/8" x 1/2"	2 7/16" x 5/8"	3" x 3/4"	4" x 1"	4" x 1"
Number of Bolts	4	4	4	8	8	12
Thread Size	3/8"-24	7/16"-20	1/2"-20	3/8"-24	3/8"-24	7/16"-20
Bolt Circle	3 1/8"	3 3/4"	4 3/4"	6 1/8"	7 1/4"	7 1/4"
Pilot Diameter	2 3/8"	2 3/4"	3 3/4"	6 5/8"	7 3/4"	7 3/4"
Outside Diameter	3 7/8"	4 9/16"	5 7/8"	6 7/8"	8"	8"
Overall Length	2"	2"	2 1/2"	3 1/2"	4"	4"

Special Large Flange – SLF

Rough Bore Diameter	1 3/8"	1 3/4"	2 3/8"	3"	3 1/2"	3 1/2"
Max Bore & Key	2 3/8" x 5/8"	3" x 3/4"	3 3/4" x 1"	4 1/2" x 1"	5 1/2" x 1 1/4"	5 1/2" x 1 1/4"
Number of Bolts	4	4	4	8	8	12
Thread Size	3/8"-24	7/16"-20	1/2"-20	3/8"-24	3/8"-24	7/16"-20
Bolt Circle	3 1/8"	3 3/4"	4 3/4"	6 1/8"	7 1/4"	7 1/4"
Pilot Diameter	2 3/8"	2 3/4"	3 3/4"	6 5/8"	7 3/4"	7 3/4"
Outside Diameter	3 7/8"	4 9/16"	5 7/8"	6 7/8"	8"	8"
Overall Length	2 1/2"	3"	3 1/2"	5"	6"	6"

Common Standard Flanges

Bore	Key	1310	1350/1410	1480/1550	1610	1710	1810
1″	1/4″	31SF-1.00-25	35SF-1.00-25
1-1/8″	1/4″	31SF-1.12-25	35SF-1.12-25
1-1/4″	1/4″	31SF-1.25-25	35SF-1.25-25
1-1/4″	5/16″	31SF-1.25-31	35SF-1.25-31
1-3/8″	5/16″	31SF-1.37-31	35SF-1.37-31
1-3/8″	3/8″	31SF-1.37-37	35SF-1.37-37
1-7/16″	3/8″	31SF-1.43-37	35SF-1.43-37
1-1/2″	3/8″	31SF-1.50-37	35SF-1.50-37	48SF-1.50-37
1-5/8″	3/8″	31SF-1.62-37	35SF-1.62-37	48SF-1.62-37
1-11/16″	3/8″	31SF-1.68-37	35SF-1.68-37	48SF-1.68-37
1-3/4″	3/8″	31SLF-1.75-37	35SF-1.75-37	48SF-1.75-37
1-3/4″	1/2″	31SLF-1.75-50	35SF-1.75-50	48SF-1.75-50
1-7/8″	3/8″	31SLF-1.87-37	35SF-1.87-37	48SF-1.87-37
1-7/8″	1/2″	31SLF-1.87-50	35SF-1.87-50	48SF-1.87-50
2″	1/2″	31SLF-2.00-50	35SLF-2.00-50	48SF-2.00-50	61SF-2.00-50	71SF-2.00-50
2-1/8″	5/8″	31SLF-2.12-62	35SLF-2.12-62	48SF-2.12-62	61SF-2.12-62	71SF-2.12-62
2-1/4″	1/2″	31SLF-2.25-50	35SLF-2.25-50	48SF-2.25-50	61SF-2.25-50	71SF-2.25-50
2-1/4″	5/8″	31SLF-2.25-62	35SLF-2.25-62	48SF-2.25-62	61SF-2.25-62	71SF-2.25-62
2-3/8″	5/8″	31SLF-2.37-62	35SLF-2.37-62	48SF-2.37-62	61SF-2.37-62	71SF-2.37-62
2-7/16″	5/8″		35SLF-2.43-62	48SLF-2.43-62	61SF-2.43-62	71SF-2.43-62	81SF-2.43-62
2-1/2″	5/8″		35SLF-2.50-62	48SLF-2.50-62	61SF-2.50-62	71SF-2.50-62	81SF-2.50-62
2-3/4″	5/8″		35SLF-2.75-62	48SLF-2.75-62	61SF-2.75-62	71SF-2.75-62	81SF-2.75-62
2-15/16″	3/4″			48SLF-2.93-75	61SF-2.93-75	71SF-2.93-75	81SF-2.93-75
3″	3/4″			48SLF-3.00-75	61SLF-3.00-75	71SF-3.00-75	81SF-3.00-75
3-1/2″	7/8″			48SLF-3.50-87	61SLF-3.50-87	71SF-3.50-87	81SF-3.50-87
3-15/16″	1″				61SLF-3.93-1	71SF-3.93-1	81SF-3.93-1
4″	1″				61SLF-4.00-1	71SF-4.00-1	81SF-4.00-1