MIL-DTL-3903F
3.4.1.1 Seizing. Seizing shall be of strand conforming to RR-W-410, type V, class 1, or
wire and shall be iron or annealed steel, as specified (see 6.2). Construction and dimensions
shall be as specified in table III. A seizing if strand or wire shall cover the splice and adjacent
strands, which were unlaid during splicing. Seizing shall be tightly wound, each wrap of seizing
laying against the preceding wrap, the ends twisted together, and laid against the rope.
TABLE III. Seizing strands size and construction.
Seizing strand
Wire rope diameter
Seizing wire minimum
(Inch)
diameter (Inch)
Diameter (Inch)
Construction
3/8
1/16
1 by 7
0.080
1/2
3/32
1 by 7
0.080
5/8
1/8
1 by 7
0.080
3/4
1/8
1 by 7
0.104
7/8 and larger
5/32
1 by 7
0.104 and larger
3.4.1.2 Hand tucks. Hand-tucked splices shall be made by forming a loop and splicing
the dead end into the live end of the rope. Each dead-end strand shall be given one forming tuck
and three full tucks around the same strand in the body of the rope. One additional full tuck shall
be made when splicing flexible wire ropes such as the 6 by 37 classification. Splices shall be
tightly tapped to remove high spots and allow the strands to mesh.
3.4.1.3 Forming tucks. Forming tucks shall be made by prying two adjacent strands
apart, inserting a dead-end strand into the opening, and passing the strand under one, two, or
three adjacent strands in the body of the rope. The dead-end strand shall be set or locked tightly.
3.4.1.4 Full tucks. Full tucks shall be made by inserting a dead-end strand under a strand
in the body of the wire rope and rotating it 360 degrees. The tucked strand shall be set or locked
tightly. Each subsequent full turn of the dead-end strand around the live-end strand constitutes
an additional full tuck.
3.4.1.5 Setting or locking. Setting or locking of a dead-end strand shall be accomplished
by pulling the strand end in under considerable force. At the same time, a marlin spike, inserted
in the same opening in the body of the rope, shall be rotated about the axis of the rope back to the
start of the splice or to the previous tuck.
3.4.1.6 Tensile strength. Minimum tensile strength shall be as specified in table II.
3.4.2 Type II. Type II slings shall consist of one continuous length of steel wire rope as
figure 1.
6
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business