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|  MIL-T-46797B(AT)
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3.5.3.2 Body frame. Body framing shall be a completely welded structure with members
of minimum gage thickness specified in table V for carbon steel; high tensile steel may be
furnished in two gages lighter weight in accordance with US Standard gage sizes. There shall be
not less than a full width crossmembers, including ends and stub crossmembers as required for
proper spacing over axle. Crossmembers shall be of the full channel construction, reinforced by
gusset plates, or brackets at points of attachment to longitudinal sills, and contact edges of
welded reinforcements shall be welded for not less than 50 percent of the edge-length.
Longitudinal sills shall be constructed of structural steel channel or formed channels. Formed
channel sills shall be reinforced within the sill, at each crossmember or body mounting point,
with formed channel reinforcements.
TABLE V. Framing gages.
US Standard
Equivalent
Framing member
gage number
inches
Crossmembers
10
0.1345
Side and end rails
10
0.1345
Longitudinal sills
8
0.1644
Reinforcements
8
0.1644
Rack posts
11
0.1196
Rack posts with reinforced
lower section
12
0.1046
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3.5.3.3 Flooring. Unless a composite type of construction is specified (see 3.5.3.6), the
platform shall be floored with wood or steel, at the manufacturer's option. Wood parts shall be
treated in accordance with MIL-STD-1223.
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3.5.3.4 Wood floors. Wood platforms shall be floored longitudinally with either ship-lap
or tongue-and-groove joints. Wood flooring shall be of hardwood or dense southern yellow pine
not less than 1-5/16 inches thick (finished dimension).
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3.5.3.5 Steel floors. Steel floors shall be 1/8 inch thick, one or two piece diamond tread
with additional lateral support provided at the wheel wells. Two piece floors shall be spliced
longitudinally and completedly welded the full length of the splice.
3.5.3.6 Composite floors. When specified (see 6.2), composite type of floor construction
shall be furnished. Composite type shall include not less than eight steel flanged (hat shaped)
channels extending the full length of the platform. Channels shall be constructed of not less than
14 gage (0.0747 inch) steel, 1-1/2 inches wide at the top, of a height flush with or slightly below
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