188.8.131.52.1 Welded links. welded links, regardless of the type of weld joint, shall
require radiographic inspection in accordance with procedural requirements of MIL-STD-271.
Welds shall meet the class 3 requirements of NAVSEA 0900-LP-003-9000.
184.108.40.206.2 Forged links. Forged links manufactured without a joint (one continuous
piece), are excluded from radiographic inspection.
220.127.116.11 Dimensions of links. Links shall conform to the dimensions shown on figure 2.
Industrial standard tolerances apply.
Hoisting links shall be galvanized in accordance
18.104.22.168 Galvanization of links.
with ASTM A153, Class B-1.
Webbing shall be nylon and of the slotted type conforming to MIL-W-
The webbing used in the slings shall be free of splices.
23223 and table I.
Webbing used in slings.
Spacing of slots
Inches ± 1/8
1, 3, 4
1, 3, 4
22.214.171.124 Color. The color of the webbing (excluding marker threads, web insertions,
and anti-static treated webbing) shall be olive drab. Color of the web insertions shall be
as shown on figure 1 for the corresponding net type. Web insertions on class A nets shall
not be treated with rubber latex.
126.96.36.199 Class A webbing. Class A webbing shall be anti-static treated with conductive
robber latex in accordance with requirements of MIL-W-23223 and shall result in charcoal
color so that it is readily identified. This deposit shall increase the weight of the
webbing by 7 to 14 percent. Web insert for class A nets shall not be treated.
Class B webbing shall be fire retardent webbing impregnated
188.8.131.52 Class B webbing.
with neoprene latex (see 6.2.) The treatment shall consist of impregnating the webbing with
polychloroprene compound containing suitable acid acceptors and flame-proofing compounds in
accordance with MIL-W-23223.
3.2.3 Thread. The thread shall be type I or type II, number size 4 or 6, or letter
size FF conforming to V-T-295.
Thread may be either white or olive drab.
184.108.40.206 Color of thread.
3.2.4 Manufacturer's identification. A label in `accordance with DDD-L-20, type II,
class 9, shall be attached by sewing it to the frame webbing in each net corner. The label
shall show the new manufacturer's name, month and year of manufacture, National stock number,
capacity and size of the net. Lettering on the label shall be at least 1/4 inch high.
3.3 Construction. Types I and II slings shall be constructed as shown on figures 3,
4, and 5, as applicable. Type III slings shall be constructed as shown on figures 6 and 7,
3.3.1 Meshes. Meshes shall be formed by passing the webbing alternately through
webbing slot-loping an enclosing square pattern. The size of the meshes shall be
established by the spacing of the slots; meshes shall be oriented at right angle to the frame.
Insertions into a webbing shall be made by other webbings at spacings of 16 or 20 inches to
form a square mesh pattern.
3.3.2 Frame. The frame of types I and II slings shall consist of four lengths of
slotted webbings called frame webbings. Joining of the frame webbings shall be accomplished
in two steps as shown on figures 3, 4, and 5. The frame of type III slings shall be of
one piece as shown on figures 6 and 7.
Stitches shall conform to stitch type 301 of FED-STD-751 and shall