MIL-T-62320C
3.5.2 Body framing. Body framing shall be of all-steel welded construction, braced at all points of stress. There shall be not less than 10 full-width crossmembers, including the ends, of full-channel or I-beam steel construction, attached to the longitudinal sills by welds. Angle gussets (when used), crossmembers, longitudinal sills, and welded reinforcements (when used) shall be joined by weld for not less than 50 percent of the length of the contact edge(s). Spacing of crossmembers shall be equal, ahead of, and to the rear of the wheels. Longitudinal sills shall be constructed from structural steel channels or reinforced, formed channels. Formed channel sills shall be reinforced within the sill, at each crossmember or body mounting point, with formed channel reinforcements. The crossmember, angle gussets, formed longitudinal sills, and reinforcements shall be not less than 10 gage (0.1345 inch) steel. Side and front rails (out-rails) shall be not less than 12 gage (0.1046 inch) steel. Design of the subframe shall permit low floor height, provide tire chain clearance, and shall permit vehicle operation at speeds up to 55 mph over improved roads when loaded with an evenly distributed payload to the rated GVW, without evidence of permanent deformation. Side, front and rear post construction shall be not less than
14 gage (0.0747 inch) pressed steel. Bodies shall have at least 10 posts per side with not less
than five posts at the front and four at the rear with two of the rear posts spaced to support the rear doors. The front structure shall be capable of withstanding a horizontal static load equal to
0.4 times the payload capacity of the vehicle without permanent distortion.
3.5.3 Body exterior. Roof assembly shall be standard for the vehicle, and shall be constructed to ensure drainage. Roof design shall include roof support bows of not less than
16 gage (0.0598 inch) steel, and spacing shall be that of side posts; the roof panels shall be not less than 22 gage (0.0299 inch) steel, or 0.032 inch aluminum alloy. Body side panels shall be
stretcher level sheet steel or equivalent flat, of not less than 20 gage (0.0359 inch). All roof and body seams and joints shall be waterproof and all body and roof corners and body roof edges
shall be rounded with a maximum radius of 6 inches. When the perimeter of the roof is furnished with extrusions, square type roof corners and posts in lieu of round radius corners are
acceptable. Replaceable rub rails of not less than 12 gage (0.1046 inch) steel shall be provided along each side of body. Full length drip molding shall be mounted above all doors and
windows that open.
3.5.4 Van body wind deflection. Unless a wind deflector is specified, an aerodynamically streamlined body front shall be incorporated into the design of the body to direct airflow around the sides and over the top of the van body. The construction shall be integral with the van body front wall, sidewalls and roof, giving a curved front radius. When specified (see 6.2), a wind deflector fairing shall be attached to the upper front face of the van body. The deflector shall have an aerodynamic fairing shape to direct airflow around the sides and over the top of the van body. The deflector fairing shall have a rounded nose with a convex profile in both side and top
22
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business