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Features:
  • Can be applied or removed by hand, hex wrench or screwdriver
  • Optional O-ring gives this part a water tight seal for superior leakage protection
  • The BL4A and the BL4B are in black
BL Series - UNF Standard Threaded Plugs (O - Ring Optional)
BL Series -UNF Standard Threaded Plugs (O-Ring Optional) - 2
Unit of Measure
1 

Item #

Added Feature

To Plug Standard Thread Size

Dimension A

Dimension B

Dimension C

Dimension D

BL3A N/A N/A 7/16"-20 N/A 0.430 in10.920 mm N/A 0.620 in15.750 mm N/A 0.180 in4.570 mm N/A 0.390 in09.910 mm
BL3L N/A With-O-Ring N/A 7/16"-20 N/A 0.430 in10.920 mm N/A 0.620 in15.750 mm N/A 0.180 in4.570 mm N/A 0.390 in09.910 mm
BL4A N/A N/A 1/2"-13 N/A 0.500 in12.700 mm N/A 0.687 in17.460 mm N/A 0.281 in7.140 mm N/A 0.41 in10.41 mm
BL4B N/A With-O-Ring N/A 1/2"-13 N/A 0.500 in12.700 mm N/A 0.687 in17.460 mm N/A 0.281 in7.140 mm N/A 0.41 in10.41 mm
BL5A N/A N/A 9/16"-18 N/A 0.500 in12.700 mm N/A 0.75 in19.05 mm N/A 0.180 in4.570 mm N/A 0.420 in10.670 mm
BL5K N/A With-O-Ring N/A 9/16"-18 N/A 0.500 in12.700 mm N/A 0.75 in19.05 mm N/A 0.180 in4.570 mm N/A 0.420 in10.670 mm
BL7A N/A N/A 3/4"-16 N/A 0.680 in17.270 mm N/A 0.940 in23.880 mm N/A 0.190 in4.830 mm N/A 0.520 in13.210 mm
BL7J N/A With-O-Ring N/A 3/4"-16 N/A 0.680 in17.270 mm N/A 0.940 in23.880 mm N/A 0.190 in4.830 mm N/A 0.520 in13.210 mm
BL8A N/A N/A 7/8"-14 N/A 0.750 in19.050 mm N/A 1.060 in26.920 mm N/A 0.240 in6.100 mm N/A 0.56 in14.22 mm
BL8H N/A With-O-Ring N/A 7/8"-14 N/A 0.750 in19.050 mm N/A 1.060 in26.920 mm N/A 0.240 in6.100 mm N/A 0.56 in14.22 mm
BL10A N/A N/A 1 1/16"-12 N/A 0.870 in22.100 mm N/A 1.310 in33.270 mm N/A 0.250 in6.350 mm N/A 0.660 in16.760 mm
BL10I N/A With-O-Ring N/A 1 1/16"-12 N/A 0.870 in22.100 mm N/A 1.310 in33.270 mm N/A 0.250 in6.350 mm N/A 0.660 in16.760 mm
BL11A N/A N/A 1 3/16"-12 N/A 1.000 in25.400 mm N/A 1.500 in38.100 mm N/A 0.300 in7.620 mm N/A 0.700 in17.780 mm
BL11D N/A With-O-Ring N/A 1 3/16"-12 N/A 1.000 in25.400 mm N/A 1.500 in38.100 mm N/A 0.300 in7.620 mm N/A 0.700 in17.780 mm
BL12A N/A N/A 1 5/16"-12 N/A 1.070 in27.180 mm N/A 1.610 in40.890 mm N/A 0.290 in7.370 mm N/A 0.700 in17.780 mm
BL12H N/A With-O-Ring N/A 1 5/16"-12 N/A 1.070 in27.180 mm N/A 1.610 in40.890 mm N/A 0.290 in7.370 mm N/A 0.700 in17.780 mm
BL13A N/A N/A 1 5/8"-12 N/A 1.125 in28.580 mm N/A 1.880 in42.750 mm N/A 0.300 in7.620 mm N/A 0.770 in19.560 mm
BL13D N/A With-O-Ring N/A 1 5/8"-12 N/A 1.125 in28.580 mm N/A 1.880 in42.750 mm N/A 0.300 in7.620 mm N/A 0.770 in19.560 mm
BL14A N/A N/A 1 7/8"-12 N/A 1.500 in38.100 mm N/A 2.125 in53.980 mm N/A 0.300 in7.620 mm N/A 0.75 in19.05 mm
BL14C N/A With-O-Ring N/A 1 7/8"-12 N/A 1.500 in38.100 mm N/A 2.125 in53.980 mm N/A 0.300 in7.620 mm N/A 0.75 in19.05 mm
Unit of Measure
1