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Page Title:
Table IV. Physical requirements for high-polyethylene fuel tanks |
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|  MIL-T-46786B
Physical requirements for high-polyethylene fuel tanks.
TABLE IV.
3.6.5 Type VI fuel tanks. Type VI fuel tanks shall be flexible, laminated,
nonself-sealing tanks conforming to MIL-T-14442.
3.7 Safety. Fuel tanks shall be constructed so that the refueling nozzle or
fuel supply container does not come in contact with any exposed electrical
component of the tank or of the equipment on which it is mounted.
3.8 Refueling.
Unless otherwise specified (see 6.2), the fuel tank, when
mounted on the equipment, shall permit refueling to an amount specified in the
specific equipment specification. Refueling to the specified amount shall be
accomplished when the equipment is tilted 1 5 degrees plus or minus 2 degrees in
any direction. The filler neck shall permit the tank to be refueled directly
from a military 5-gallon fuel can conforming to MIL-C-1283, equipped with a
flexible refueling nozzle.
3.9 Identification marking . All fuel tanks shall be identified in
accordance with MIL-STD-130 and shall include the supplier's name, date, and
tank capacity. DOT labels shall be attached to all tanks that have been
fabricated to conform to DOT side-mounted fuel tank regulations. All labels
shall be placed in a position where they will be visibl e after installation of
the fuel tank on the equipment. Type IV fuel tanks shall have special markings
as specified in 3.6.4.
3.9.1 Additional identification marking.
Fuel tanks shall have marking or
labeling specifying the specific fuel consumed by the equipment on which the
tank is to be mounted. The marking or labeling shall be in a position visible
to operators or attendants performing refueling operations.
3.10 Treatment, painting, and coating.
All welding and soldering shall
have been completed prior to cleaning, treating, and painting.
3.10.1 Tank exteriors. When specified (see 6.2), exterior surfaces of
types I, 11 and III fuel tanks, except class 4 combat fuel tanks, shall be
treated and painted in accordance with MIL-T-704, type F or G, as applicable.
Class 4 combat tanks shall be treated and painted in accordance wit h
MIL-STD-193.
The finish coat shall conform to TT-E-489, color as specified
(see 6.2). When painting is required on type IV fuel tanks, paint shall
conform to the above requirements, except that the paint shall be intumescent
thermal insulating coating compound conforming to MIL-C-46081.
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