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DIAMETER SIZE		SERIES	A		B		C		D		E		G
			WING SPREAD		WING HEIGHT		WING THICKNESS		BETWEEN WINGS		BOSS DIAMETER		BOSS HEIGHT
			max	min	max	min	max	min	max	min	max	min	max	min
3	0.099	H	0.720	0.590	0.410	0.280	0.110	0.070	0.210	0.170	0.330	0.290	0.140	0.010
4	0.112	H	0.720	0.590	0.410	0.280	0.110	0.070	0.210	0.170	0.330	0.290	0.140	0.010
5	0.125	*L	0.720	0.590	0.410	0.280	0.110	0.070	0.210	0.170	0.330	0.290	0.140	0.010
5	0.125	H	0.910	0.780	0.470	0.340	0.140	0.100	0.270	0.220	0.430	0.390	0.180	0.140
6	0.138	L	0.720	0.590	0.410	0.280	0.110	0.070	0.210	0.170	0.330	0.290	0.140	0.010
6	0.138	*H	0.910	0.780	0.470	0.340	0.140	0.100	0.270	0.220	0.430	0.390	0.180	0.140
8	0.164	*L	0.910	0.780	0.470	0.340	0.140	0.100	0.270	0.220	0.430	0.390	0.180	0.140
8	0.164	H	1.100	0.970	0.570	0.430	0.180	0.140	0.330	0.260	0.500	0.450	0.220	0.170
10	0.190	*L	0.910	0.780	0.470	0.340	0.140	0.100	0.270	0.220	0.430	0.390	0.180	0.140
10	0.190	H	1.100	0.970	0.570	0.430	0.180	0.140	0.330	0.260	0.500	0.450	0.220	0.170
12	0.216	*L	1.100	0.970	0.570	0.430	0.180	0.140	0.330	0.260	0.500	0.450	0.220	0.170
12	0.216	H	1.250	1.120	0.660	0.530	0.210	0.170	0.390	0.320	0.580	0.510	0.250	0.200
1/4	0.250	*L	1.100	0.970	0.570	0.430	0.180	0.140	0.330	0.260	0.500	0.450	0.220	0.170
1/4	0.250	R	1.250	1.120	0.660	0.530	0.210	0.170	0.390	0.320	0.580	0.510	0.250	0.200
1/4	0.250	H	1.440	1.310	0.790	0.650	0.240	0.200	0.480	0.420	0.700	0.640	0.300	0.260
5/16	0.313	*L	1.250	1.120	0.660	0.530	0.210	0.170	0.390	0.320	0.580	0.510	0.250	0.200
5/16	0.313	R	1.440	1.310	0.790	0.650	0.240	0.200	0.480	0.420	0.700	0.640	0.300	0.260
5/16	0.313	H	1.940	1.810	1.000	0.870	0.330	0.260	0.650	0.540	0.930	0.860	0.390	0.350
3/8	0.375	*L	1.440	1.310	0.790	0.650	0.240	0.200	0.480	0.420	0.700	0.640	0.300	0.260
3/8	0.375	R	1.940	1.810	1.000	0.870	0.330	0.260	0.650	0.540	0.930	0.860	0.390	0.350
7/16	0.438	*L	1.940	1.810	1.000	0.870	0.330	0.260	0.650	0.540	0.930	0.860	0.390	0.350
7/16	0.438	H	2.760	2.620	1.440	1.310	0.400	0.340	0.900	0.800	1.190	1.130	0.550	0.510
1/2	0.500	*L	1.940	1.810	1.000	0.870	0.330	0.260	0.650	0.540	0.930	0.860	0.390	0.350
1/2	0.500	H	2.760	2.620	1.440	1.310	0.400	0.340	0.900	0.800	1.190	1.130	0.550	0.510

* Designates preferred series/sizes fo each diameter.  Series designations are:
L = Light Series	H = Heavy Series	R = Regular Series

Forged wing nuts are available in a variety of wing shapes and boss dimensions. The above dimensions are for Type A, also known as Type 1 Style A-1 of Federal Specification FF-N-845. Stamped wing nuts are also available by request. For more information, ask your U.S. Fastener sales representative.