MIL-S-22824E
* 3.10.3 Swaged sleeve fittings. Swaged sleeve fittings shall be seamless
stainless steel or seamless carbon steel. Carbon steel sleeves shall be zinc
coated after swaging.
3.11 Spreader bar. Spreader bar assemblies shall be constructed as shown on
figure 9. The spreader bar shall be hot-dip zinc coated after fabrication. The
pipe ends of the spreader bar shall not be capped.
* 3.11.1 Steel pipe. The steel pipe shall be standard weight, seamless,
conforming to ASTM A 53
3.11.2 Steel Plate.
The steel plate shall conform to ASTM A 36.
3.11.3 Rated capacity and length marking. The rated capacity (in tons) of
the sling assembly shall be marked on each end of the spreader bar before
galvanizing. Marking shall be legible after galvanizing. The spreader bar
length (see figure 9) shall be marked on the pipe section.
* 3.12 Safety hooks. The safety hooks shall be either a bail or swivel type,
heat treated steel forgings, zinc coated, with positive locking closure safety
device, conforming to ANSI B30.10. Hook shall be able to be disassembled to
allow routine and periodic inspection of the shank for evidence of failure or
cracks. The rated load of the hook shall be as specified in figure 6. The
proof loads shall be twice the rated load.
3.13 Chain assemblies. When specified (see 6.2), two zinc-coated chain
assemblies, each consisting of the items in table I, shall be furnished with
each sling assembly.
TABLE I. Chain assemblies.
3.14 Interchangeability.
All units of the same classification furnished
with similar options under a specific contract shall be identical to the extent
necessary to insure interchangeability of component parts, assemblies,
accessories, and spare parts.
3.15 Cleaning, treatment, and painting. Surfaces normally painted in good
commercial practice shall be cleaned, treated, and painted as specified herein.
Unless otherwise specified (see 6.2), one pair of safety hooks connecting to a
spreader bar on one side of sling shall be sprayed with red lacquer, color No.
21158 of FED-STD-595; the other pair, on the opposite side, shall be yellow
lacquer, color No. 23538. Surfaces to be painted shall be cleaned and dried to
insure that they are free from contaminants such as soil, grease, welding slag
and spatter, loose mill scale, water, dirt, corrosion product, or any other
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