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MOTES: Angles go or less from the vertical may be considered vertical

engles.

Por slings with legs more than go off vertical, the actual angle as shown in Figure N-184-5 must be considered.

KAPLANATION OF SYMBOLS:

MINIMUM DIAMETER OF CURVATURE

Represents • contact surface which
shall have a diameter of curvature at

.last double the diameter of the rope
from which the sling is made.

Represents i contact surface which
shall have a diametei of curvature at
least 8 times the diameter of the rope.
Represents a load in a choker hitch and
illustrates the rotary force on the load

and/or the slippage of the rope in
contact with the load. Diameter of curvature of
load surface shall be at least double the diameter
of the rope.

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HOGES: For vertical angles of -5° or less, refer to figure N-184.4

"Basic Sling Configurations with Vertical Legs".

Sae Ilgure N-184-4 for explanation of symbols.

TABLE N-184-16.-MANILA ROPE SLINGS

(Angle of rope to vertical shown in parentheses)

Eye and eye sling

Rope

dia. nominal

in inches

Nominal wt. per 100 ft in pounds

Basket hitch; Angle of rope to

horizontal

Verti

cal hitch

Choker hitch

Verti

cal hitch

90*

(0°)

60° (30°)

45* (45)

30° (60°)

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2,030

7.5 10.4 13.3 16.7 19.5 22.5 27.0 31.3 36.0 41.7

480 620 790

970 1,170 1,390 1,620 1.890 2,160 2,430 2,700 3,330 4,050 4,770 5,580 6,480 7,380 8,370 9,360

%

1 1416 1 % 144 16o 142 1% 144

2 2%, 244 2442 2%

240 960 830 680 310 1,240 1,070 875 395 1,580 1,370 1,120 485 1,940 1,680 1,370 585 2,340

1,650 695 2,780 2,410 1.970 810 3,240 2,810 2,290

945 3,780 3,270 2,670 1,080 4,320 3,740 3,050 1,220 4,860 4,210 3,440 1,350 5,400 4,680 3,820 1,670 6,660 5,770 4,710 2,030 8,100 7,010 5,730 2,390 9,540 8,260 6,740 2,790 11,200 9,660 7,890 3,240 13,000 11,200 9,160 3,690 14,800 12,800 10,400 4,190 16,700 14,500 | 11,800 4,680 18,700 16,200 13,200

480 865 620 1,120 790 1,420

970 1,750 1,170 2,110 1,390 2,500 1.620 2,920 1,890

3,400 2,160 3,890 2,430 4,370 2,700 4,860 3,330 5,990 4,050 7,290 4,770 8,590 5,580 10,000 6,480 11,700 7,380 13,300 8,370 15,100 9,360 | 16,800

47.9

59.9 74.6 89.3 107.5 125.0 146.0 166.7 190.8

See Figs. N-184-4 and N-184-5 for sling configuration descriptions.

TABLE N-184-17.-NYLON ROPE SLINGS

(Angle of rope to vertical shown in parentheses)

Endless sling

Basket hitch; Angle of rope to

horizontal

Choker
hitch

90°

(0°)

60°
(30°)

45°
(454)

30° (60°)

430 1,730

1,500 1,220 865 560 2,230 1,930 1,580 1,120 710 2,840 2,460 2,010 1,420 875 3,490 3,020 2,470 1,750 1,050 4,210 3,650 2,980 2,110 1,250 5,000 4,330

3,540

2,500 1,460 5,830 5,050 4,120 2,920 1,700 6,800 5,890 4,810 3,400 1,940 7,780 6,730 5,500 3,890 2,190 8,750 7,580 6,190 4,370 2,430 9,720 8,420 6,870 4,860 3,000 12,000 10,400 8,480 5,990 3,650 14,600 12,600 10,300 7,290 4,290 17,200 14,900 12,100 8,590 5,020 20,100 17,400 14,200 10,000 5,830 23.300 2,0,200 16,500 11,700 6,640 26,600 23,000 18,800 13,300 7,530 30,100 26,100 21,300 15,100 8,420 33,700 29,200 23,800 16,800

Endless sling

Rope

dia. nominal

Nominal
wt per
100 ft in
pounds

Eye and eye sling

Basket hitch; Angle of rope to
Choker

horizontal
hitch

90° 60° 45° 30*
(0) (304) (45) (60°)

Basket hitch; Angle of rope to

horizontal

Verti

cal hitch

Verti

cal
hitch

Choker
hitch

inches

90°
(0%)

60°
(30%)

45°
(45)

30
(60°)

% %16

1416

1 14. 1% 144 1416 1% 1% 1%4

2 243 244 242 2%

6.5 635 8.3 790 10.5

1,030 14.5 1,410 17.0 1,680 20.0

1,980 26.0 2,480 29.0 2,850 34.0 3,270 40.0 3,710 45.0 4,260 55.0 5,250 68.0 6,440 83.0 7,720 95.0

9,110
109.0 | 10,500
129.0 12,400
149.0 13.900
168.0 16.000

320 1,270 1,100 900 635 1,140
395 1,580 1,370 1,120 790 1,420
515 2,060 1,780 1,460 1,030 1,850
705 2,820 2,440 1,990 1,410 2,540
840 3,360 2,910 2,380 1,680

3,020
990 3,960 3,430 2,800 1,980 3,560
1,240 4,960

4,300 3,510 2,480 4,460 1,430

5,700 4,940 4,030 2,850 5,130 1.640 6,540 5,660 4,620 3,270 5,890 1,860 7,420 6,430 5,250 3,710 6,680 2,130 8,520 7,380 6,020 4,260 7,670 2,630 10,500 9,090 7,420 5,250 9,450 3,220 12,900 11,200 9,110 6,440 | 11,600 3,860 15,400 13,400 10.900 7,720 13,900 4,560 18,200 15,800 12,900 9,110 16,400 5,250 21,000 18,200 14,800 10,500 18,900 6,200 24,800 21,500 17,500 12,400 22,300 6,950 27,800 24,100 19,700 13,900 25,000 8,000 32,000 27,700 22,600 16,000 28.800

570 2,290 1,980 1,620 1,140 710 2,840 2,460 2,010 1,420 925 3,710 3,210 2,620 1,850 1,270 5.080 4,400 3,590 2,540 1,510 6,050 5,240 4,280 3,020 1,780 7,130 6,170 5,040 3,560 2,230 8,930 7,730 6,310 4,460 2,570 10,300 8,890 7,260 5,130 2,940 11,800 10,200 8,330 5,890 3,340 13,400 11.600 9,450 6,680 3,830 15,300 13,300 10.800 7,670 4,730 18,900 16,400 13,400 9,450 5,800 23,200 20,100 16,400 11,600 6,950 27,800 24,100 19,700 13,900 8,200 32,800 28,400 23,200 16,400 9,450 37,800 32,700 26,700 18,900 11,200 44,600 38,700 31,600 22,300 12,500 50,000 43,300 35,400 25,000 14,400 57,600 49,900 40,700 28,800

See Figs. N-184-4 and N-184-5 for sling configuration descriptions.

TABLE N-184-18.-POLYESTER ROPE SLINGS

[Angle of rope to vertical shown in parentheses)

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320 1,270 1,100 900 635 1,140 395 1,580 1,370 1,120 790 1,420 495 1,980 1,710 1,400 990 1,780 620 2,480 2,150

1,750 1,240 2,230 770 3,080 2,670 2,180

1,540

2,770 890 3,560 3,080 2,520 1.780 3,200 1,090 4,360 3,780 3,080 2,180 3,920 1,270 5,060 4,380 3,580 2,530 4,550 1,460 5,840 5,060 4,130 2,920 5,260 1,650 6,580

5,700 4,650 3,290 5,920 1,860 7,420 6,430 5,250 3,710 6,680 2,320 9,260 8,020 6,550

4,630 8,330 2,820 11.300 9,770 7,980 5,640 10,200 3,360 13,400 11,600 9,490 6,710 12,100 3.960 15,800 13,700 11,200 7,920 14,300 4,460 18,200 15,800 12,900 9,110 | 16,400 5,300 21,200 18,400 15,000 10,600 19,100 6,050 24,200 21,000 17,100 12,100 21,800 6,800 27,200 23,600 19,200 13,600 24,500

See Figs. N-184-4 and N-184-5 for sling configuration descriptions.

TABLE N-184-19.-POLYPROPYLENE ROPE SLINGS

(Angle of rope to vertical shown in parentheses)

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325 1,290 1,120 910

645

1,160 390 1,560 1,350 1,100 780 1,400 475 1,900 1,650 1,340 950 1,710 650 2,600 2,250 1,840 1,300 2,340 760 3,040 2,630 2,150 1,520 2,740 880 3,520 3,050 2,490 1,760 3,170 1,070 4,280 3,700 3,030 2,140 3,850 1,230

4,900 4,240 3,460 2,450 4,410 1,400 5,600 4,850 3,960 2,800 5,040 1,610 6,420 5,560 4,540 3,210 5,780 1.800 7,200 6,240 5,090

3,600 6,480 2,270 9,080 7,860 6,420 4,540

8,170 2,760 11,000 9,540 7,790 5,5109,920 3,290 13,200 11,400 9,300 6,580 11,800 3,980 15,900 13,800 11,300 7,960 14,300 4,670 18,700 16,200 13,200 9,330 16,800 5,300 21,200 18,400 15,000 10,600 19,100 6,100 24,400 21,100 17,300 12,200 22,000 6,900 27,600 23,900 19,600 13,800 24,800

Endless sling

Basket hitch; Angle of rope to

horizontal

Choker

hitch

90° (0)

60°
(30)

45°
(45")

30*
(60)

570 2,290 1,980 1,620 1,140 710 2,840 2,460 2,010 1,420 890 3,570 3,090 2,520 1,780 1,120 4,470 3,870 3,160 2,230 1,390 5,540 4,800 3,920 2,770 1,600 6,410 5,550 4,530 3,200 2,960 7,850 6,800 5,550 3,920 2,280 9,110 7,990 6,440 4,550 2,630 10,500 9,100 7,440 5,260 2,960 11,800 10,300 8,380 5,920 3,340 13,400 11,600 9,450 6,680 4,170 16,700 14,400 11,800 8,330 5,080 20,300 17,600 14,400 10.200 6,040 24,200 20,900 17,100 12,100 7,130 28,500 24,700 20,200 14,300 8,200 32,800 28,400 23,200 16.400 9,540 38,200 33,100 27,000 19,100 10,900 43,600 37.700 30,800 21,800 12,200 49,000 42,400 34,600 24,500

Endless sling

Basket hitch; Angle of rope to

horizontal

Choker
hitch

90°
(0)

60°
(30)

45°
(45)

30* (60°)

580 2,320 2,010 1,640 1,160 700 2,810 2,430 1,990 1,400 855 3,420 2,960 2,420 1.710 1,170 4,680 4,050 3,310 2,340 1,370 5,470 4,740 3,870 2,740 1,580 6,340 5,490 4,480 3,170 1.930 7,700 6,670 5,450 3,860 2,210 8,820 7,640 6,240 4,410 2,520 10,100 8,730 7,130

5,040 2,890 | 11,600 10,000 8,170 5.780 3,240 13,000 11,200 9,170 6,480 4,090 16,300 14,200 11,600 8,170 4,960 19,800 17,200 14,000 9,920 5,920 23,700 20,500 16,800 11,800 7.160 28,700 24,800 20,300 14,300 8,400 33,600 29,100 23,800 16,800 9,540 38,200 33,100 27,000 19,100 11,000 43,900 38,000 31,100 22,000 12,400 49,700 43,000 35,100 24,800

See Figs. N-184-4 and N-184-5 for sling configuration descriptions.

(2) Safe operating temperatures. Natural and synthetic fiber rope slings, except for wet frozen slings, may be used in a temperature range from minus 20°F to plus 180°F without decreasing the working load limit. For

operations outside this temperature range and for wet frozen slings, the sling manufacturer's recommendations shall be followed.

(3) Splicing. Spliced fiber rope slings shall not be used unless they have

been spliced in accordance with the following minimum requirements and in accordance with any additional recommendations of the manufacturer:

(i) In manila rope, eye splices shall consist of at least three full tucks, and short splices shall consist of at least six full tucks, three on each side of the splice center line.

(ii) In synthetic fiber rope, eye splices shall consist of at least four full tucks, and short splices shall consist of at least eight full tucks, four on each side of the center line.

(iii) Strand end tails shall not be trimmed flush with the surface of the rope immediately adjacent to the full tucks. This applies to all types of fiber rope and both eye and short splices. For fiber rope under one inch in diameter, the tail shall project at least six rope diameters beyond the last full tuck. For fiber rope one inch in diameter and larger, the tail shall project at least six inches beyond the last full tuck. Where a projecting tail interferes with the use of the sling, the tail shall be tapered and spliced into the body of the rope using at least two additional tucks (which will require a tail length of approximately six rope diameters beyond the last full tuck).

(iv) Fiber rope slings shall have a minimum clear length of rope between eye splices equal to 10 times the rope diameter.

(v) Knots shall not be used in lieu of splices.

(vi) Clamps not designed specifically for fiber ropes shall not be used for splicing.

(vii) For all eye splices, the eye shall be of such size to provide an included angle of not greater than 60 degrees at the splice when the eye is placed over the load or support.

(4) End attachments. Fiber rope slings shall not be used if end attachments in contact with the rope have sharp edges or projections.

(5) Removal from service. Natural and synthetic fiber rope slings shall be immediately removed from service if any of the following conditions are present:

(i) Abnormal wear.

(ii) Powdered fiber between strands. (iii) Broken or cut fibers.

(iv) Variations in the size or roundness of strands.

(v) Discoloration or rotting.

(vi) Distortion of hardware in the sling.

(6) Repairs. Only fiber rope slings made from new rope shall be used. Use of repaired or reconditioned fiber rope slings is prohibited.

(i) Synthetic web slings—(1) Sling identification. Each sling shall be marked or coded to show the rated capacities for each type of hitch and type of synthetic web material.

(2) Webbing. Synthetic webbing shall be of uniform thickness and width and selvage edges shall not be split from the webbing's width.

(3) Fittings. Fittings shall be:

(i) Of a minimum breaking strength equal to that of the sling; and

(ii) Free of all sharp edges that could in any way damage the webbing.

(4) Attachment of end fittings to webbing and formation of eyes. Stitching shall be the only method used to attach end fittings to webbing and to form eyes. The thread shall be in an even pattern and contain a sufficient number of stitches to develop the full breaking strength of the sling.

(5) Sling use. Synthetic web slings illustrated in Fig. N-184-6 shall not be used with loads in excess of the rated capacities specified in Tables N-184-20 through N-184-22. Slings not included in these tables shall be used only in accordance with the manufacturer's recommendations.

(6) Environmental conditions. When synthetic web slings are used, the following precautions shall be taken:

(i) Nylon web slings shall not be used where fumes, vapors, sprays, mists or liquids of acids or phenolics are present.

(ii) Polyester and polypropylene web slings shall not be used where fumes, vapors, sprays, mists or liquids of caustics are present.

(iii) Web slings with aluminum fittings shall not be used where fumes, vapors, sprays, mists or liquids of caustics are present.

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