PART NUMBER SIZE F235 STUD EQUIVALENT L WEIGHT
in mm lbs kg
             
R576-31-08T7-1214 8.7T F235-012 1.86 47.24 0.36 0.16
R576-31-12T4-1716 12.4T F235-017 2.03 51.56 0.53 0.24
R576-31-16T-2218 16T F235-022 2.23 56.64 0.79 0.36
R576-31-21T-3020 21T F235-030 2.54 64.52 1.12 0.51
R576-31-27T-4024 27T F235-040 2.92 74.17 1.45 0.66
R576-31-35T-4828 35T F235-048 3.10 78.74 1.91 0.87
R576-31-45T-6032 45T F235-060 3.53 89.66 2.74 1.24
R576-31-57T-7634 57T F235-076L 4.12 104.65 4.07 1.85
See R576-06 for PBO socket geometry.  See F235 for micro stemball stud geometry.

R576-31 PBO MSB Stud

The MSB Stud is designed to fit the F235
Stemball parts in tip cups, tangs, and other
terminations for rod.

SIZE COVER DIAMETER MAXIMUM BREAKING STRENGTH WEIGHT STRETCH EQUIVALENT
  mm in kg lb kg/m lb/ft N-50 ROD 1x19 WIRE
                 
5.3T 8.0 0.315 5,300 11,700 0.050 0.034 -8 7mm, 9/32
8.7T 10.0 0.394 8,700 19,200 0.076 0.051 -12 8mm, 5/16
12.4T 11.8 0.465 12,400 27,300 0.112 0.075 -17 11mm, 7/16
16T 13.1 0.516 16,000 35,300 0.135 0.091 -22 12mm
21T 15.0 0.591 21,000 46,300 0.176 0.118 -30 14mm, 9/16
27T 16.8 0.661 27,000 59,500 0.224 0.151 -40 16mm, 5/8
35T 19.2 0.756 35,000 77,200 0.285 0.192 -48 19mm, 3/4
45T 22.0 0.866 45,000 99,200 0.376 0.253 -60 22mm, 7/8
57T 23.6 0.929 57,000 125,700 0.471 0.317 -76 22mm, 7/8
71T 26.2 1.031 71,000 156,600 0.577 0.388 -91 26mm, 1
88T 28.7 1.130 88,000 194,000 0.693 0.406 -115 28mm,1 7/8
110T 31.8 1.252 110,000 242,600 0.852 0.573 -150 32mm, 1 1/4
PBO Fiber Cable

PBO Biconic End Fittings


All Navtec Biconic terminals have been designed and optimized to take advantage of the strength of the fiber cable
that they are being applied to. For Aramid cables, we offer Biconic terminals made from aluminum, stainless steel, or
titanium to suit any application or budget. For our PBO cables, we offer our Biconic terminals in titanium due to the
unique requirements of the PBO fiber.


All Navtec fittings have been designed and applied to each Aramid or PBO cable size to provide adequate strength
for any strength or stretch application. Our fittings use standard pin sizes and dimensions that make retrofit and new
rig application easy. Alternatively, Navtec can supply any number of non-standard pin sizes or fitting dimensions to suit
specific applications. The female thread in our Biconic terminal offers one of the most versatile attachment available.
Virtually any custom fitting design can be adapted to fit our terminals.

pbo rigginG: Biconic

PBO Rigging PDF

351 New Whitfield St Guilford, CT 06437-3400 USA  (203) 458-3163 Fax (203) 458-9291    info@navtec.net

PART NUMBER SIZE THREAD SIZE LENGTH  OPEN LENGTH CLOSED WEIGHT
in mm in mm lb kg
               
R576-34-08T714 8.7T 7/16-14 9.4 238.8 6.5 165.1 0.69 0.31
R576-34-12T416 12.4T 1/2-20 10.1 256.5 7.0 177.8 1.00 0.45
R576-34-16T018 16T 9/16-18 11.4 289.6 7.8 198.1 1.51 0.68
R576-34-21T020 21T 5/8-18 14.0 355.6 10.4 264.2 2.32 1.05
R576-34-27T024 27T 3/4-16 13.8 350.5 10.2 259.1 2.98 1.35
R576-34-35T028 35T 7/8-14 14.5 368.3 10.9 276.9 3.94 1.79
R576-34-45T032 45T 1-12 15.2 386.1 11.0 279.4 5.16 2.34
R576-34-57T036 57T 1 1/8-12 20.6 523.2 15.2 386.1 8.76 3.97
R576-34 Tip Turnbuckle

The R576-34 Tip Turnbuckle uses standard ball
head screws to fit tip cups, tangs, spreader bars,
etc. where adjustment is preferred.

PART NUMBER SIZE øA THREAD F øG L øP WEIGHT
in mm Metric in mm in mm in mm in mm lbs kg
                             
R576-20-05T35 5.3T 1.378 35.0 M20 x 150 0.374 9.5 0.878 22.3 1.693 43.0 0.939 23.0 0.273 0.124
R576-20-08T75 8.7T 1.654 42.0 M22 x 150 0.591 15.0 1.063 27.0 2.126 54.0 1.102 27.0 0.459 0.208
R576-20-12T45 12.4T 1.969 50.0 M25 x 150 0.669 17.0 1.142 29.0 2.520 64.0 1.306 32.0 0.701 0.318
R576-20-16T05 16T 2.126 54.0 M30 x 200 0.728 18.5 1.350 34.3 2.835 72.0 1.388 34.0 1.056 0.479
R576-20-21T05 21T 2.283 58.0 M36 x 200 0.787 20.0 1.606 40.8 3.110 79.0 1.469 36.0 1.625 0.737
R576-20-27T05 27T 2.480 63.0 M38 x 200 0.866 22.0 1.752 44.5 3.425 87.0 1.633 40.0 2.602 1.180
R576-20-35T05 35T 2.717 69.0 M40 x 200 0.984 25.0 1.929 49.0 3.780 96.0 1.772 45.0 3.352 1.520
R576-20 Large Eye PBO
PART NUMBER SIZE øA THREAD øB (Hole) øC D
in mm Metric in mm in mm in mm
                     
R576-07-05T35 5.3T 0.878 22.30 M20 x 150 0.453 11.50 0.394 10.0 0.500 12.70
R576-07-08T75 8.7T 1.024 26.00 M22 x 150 0.571 14.50 0.531 13.5 0.571 14.50
R576-07-12T45 12.4T 1.220 31.00 M25 x 150 0.642 16.30 0.630 16.0 0.709 18.00
R576-07-16T05 16T 1.417 36.00 M30 x 200 0.760 19.30 0.709 18.0 0.787 20.00
R576-07-21T05 21T 1.610 40.90 M36 x 200 0.807 20.50 0.787 20.0 0.906 23.00
R576-07-27T05 27T 1.752 44.50 M38 x 200 0.886 22.50 0.866 22.0 1.004 25.50
R576-07-35T05 35T 1.929 49.00 M40 x 200 1.012 25.70 1.024 26.0 1.102 28.00
PART NUMBER SIZE E F L WEIGHT
in mm in mm in mm lbs kg
                 
R576-07-05T35 5.3T 1.457 37.0 0.394 10.0 1.772 45.0 0.225 0.102
R576-07-08T75 8.7T 1.614 41.0 0.531 13.5 1.969 50.0 0.322 0.146
R576-07-12T45 12.4T 1.929 49.0 0.630 16.0 2.283 58.0 0.545 0.247
R576-07-16T05 16T 2.126 54.0 0.709 18.0 2.638 67.0 0.867 0.393
R576-07-21T05 21T 2.677 68.0 0.787 20.0 3.248 82.5 1.385 0.628
R576-07-27T05 27T 2.953 75.0 0.866 22.0 3.543 90.0 2.156 0.978
R576-07-35T05 35T 3.228 82.0 1.024 26.0 3.858 98.0 2.850 1.294
R576-07 Eye PBO
PART NUMBER SIZE øA THREAD L C D øE WEIGHT
in mm Metric in mm in mm in mm in mm lbs kg
                           
R576-06-05T35 5.3T 0.886 22.50 M20 x 1.5 3.150 80.00 1.043 26.50 1.043 26.50 0.571 14.50 0.137 0.062
R576-06-08T75 8.7T 1.063 27.00 M22 x 1.5 3.803 96.60 1.161 29.50 1.142 29.00 0.646 16.40 0.225 0.102
R576-06-12T45 12.4T 1.150 29.20 M25 x 1.5 4.280 108.70 1.417 36.00 1.472 37.40 0.772 19.60 0.331 0.150
R576-06-16T05 16T 1.350 34.30 M30 x 2 5.000 127.00 1.378 35.00 1.701 43.20 0.874 22.20 0.505 0.229
R576-06-21T05 21T 1.610 40.90 M36 x 2 5.720 145.30 1.614 41.00 1.902 48.30 1.031 26.20 0.820 0.372
R576-06-27T05 27T 1.713 43.50 M36 x 2 5.984 152.00 1.516 38.50 1.181 30.00 1.047 26.60 1.319 0.598
R576-06-35T05 35T 1.850 47.00 M38 x 2 6.732 171.00 1.866 47.40 1.181 30.00 1.181 30.00 1.837 0.833
R576-06-45T05 45T 2.079 52.80 M42 x 2 8.268 210.00 2.362 60.00 1.772 45.00 1.181 30.00 2.050 0.930
R576-06-57T05 57T 2.362 60.00 M48 x 2 9.370 238.00 2.362 60.00 1.496 38.00 1.437 36.50 2.430 1.102
R576-06 PBO Titanium SocketG: B