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|  MIL-T-83808
(84)
3.7.1
Toolbox. Tool box (or cargo box) shall be furnished behind the cab and shall be attached to or
be a part of the vehicle. The volumetric dimensions of the tool box shall be at least 45 inches long, 25
inches wide, and shall be sloped from a height of 12 inches to a height of 4 inches. Tool box sides and
bottom shall be constructed of 1/4 inch minimum steel and the lid shall be constructed of 12 gauge mini-
mum steel with a reinforced sealing flange around the perimeter. It shall be capable of being locked by a
heavy duty hasp. The tool box shall have an inside flange to mate with lid flange. Locking tool box shall
include drain holes (one each corner) for eliminating standing water. Vehicle shall be capable of support-
ing the tool box with 1,000 pounds payload evenly distributed inside on its floor.
Towing dev i ces The rear of the vehicle shall be equipped with one center pintle and two
3.7.2
outboard pintles conforming to MS 51335-2. The pintles shall be located in the same vertical plane. All
rear pintle hooks shall be mounted on extendable units. The units shall consist of a self-locking sliding bar
that will allow the hook backward movement of not less than 101/2 inches, nor more than 12 inches. The
center pintle hook shall have lateral movement of 45 in either direction from the centerline of the vehicle.
The outboard pintle hooks shall not have any lateral movement. The units shall be fitted with rollers, and
provisions shall be made for lubricating all moving parts. The normal procedure will be with the pintle
assemblies in the closed, rather than the extended position. The telescoping bar shall be equipped with a
safety grab handle. The bar shall be easily removable to facilitate inspection and maintenance. The ex-
pendable swing feature is required to facilitate connection of the hook to the trailer by the operator rather
than the method requiring a two man operation. once the lunette or towing eye of the towed load is
secured, the extendable units will be engaged in the closed position for towing by the backward move-
ment of the vehicle until the self-locking device is secure The extendable units shall be capable of with-
standing 6,000 pounds DBP in the extended position and 13,000 pounds DBP in the closed position The
expendable units may be the type manufactured by Lift Part Manufacturing Company (Part Number 54100 -
1) or PSI Mobile Products, Incorporated (Part Number 580285), or equal. The outboard pintles shall be
located 43.5 inches, plus 1.5 inches, to each side of the center pintle. The front of the vehicle shall be
equipped with a center mounted pintle hook conforming to MS 51335-2. The mount shall be capable of
withstanding 18,000 pounds DBP. All units (except the center rear pintle) shall be located 181/2 inches,
plus or minus 1/2 inch, high. The center rear extendable towing device shall be height adjustable from 12
inches to 18 1/2 inches (from the ground) A minimum of four evenly spaced height positions (including 12
inches and 18 1/2 inches) shall be provided. Height adjustment shall be easily made by the operator
without the use of tools. All pintles, except the front pintle, shall be visible from the operator's position If
constructed of mild steel, the hitch shall have hardened steel bushing and pins at all pivot and locking
points The bushings shall be easily removed for service.
Breakaway chain. Trailer emergency breakaway cable hookup, capable of mating with NAS
3.7.2.1
1281C10 spring snap hook, shall be required. The breakaway chain attachment shall be installed on
bumper or frame within 18 inches of pintle assembly it shall not be installed on the pintle or pintle assem-
blies
Saftey cha i n attachment poi nts The vehicle shall have two safety chain attachment points,
3.7.2.2
one located on each side of pintle hook, symmetrical about the pintle hook and shall be located 14 inches
high for use during towing on center rear pintle only The attachment points shall not be located a distance
of greater than 12 inches from the pintle hook and shall in no way be a part of or attached to the pintle
hook. The attachment points shall be capable of withstanding a maximum shock load of 5,000 pounds
each and shall have the ability for standard safety chain hooks to be attached The inside radius of the
safety chain hook is between one inch and three inches
3.7.3
Electr ical receptacles. The vehicle shall be equipped at the rear with a seven prong type
female weatherproof electrical receptacle in accordance with SAE J560b to receive trailer jumper cable
The receptacle shall be located within a 24 inch radius from the center pintle hook located on the rear of
the vehicle. The receptacle shall be installed complete with all the necessary wiring and Connections to
assure that trailer electrical devices can be actuated when the trailer jumper cable is connected to the
receptacle
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