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|  MIL-E-15809D(NAVY)
(1) Lumber and plywood. Unless otherwise specified (see 6.2), all lumber and plywood
including laminated veneer materials used in shipping container and pallet construction, members,
blocking, bracking, and reinforcing shall be fire-retardant treated materials conforming to
MIL-L-19140 as follows:
Type II - weather resistant
Level A and B -
Category I - general use.
Type I non-weather resistant
Level C -
Category I - general use.
(2) Fiberboard. When specified (see 6.2), fiberboard used in the construction of interior
(unit and intermediate) and exterior fiberboard boxes including interior packaging forms shall
conform to the class-domestic/fire retardant or class-weather resistant/fire retardant material
requirements, as specified (see 6.2), of PPP-P-320 and amendments thereto.
(3) Cushioning and wrapping materials. The use of excelsiar, newspaper, shredded
paper (all types), and similar hydroscopic or non-neutral materials and all types of loose fill
materials for packaging applications such as cushioning, fill stuffing and dunnage is prohibited.
Materials selected for cushioning and wrapping shall have properties (characteristics) for
resistance to fire (see 6.4) Cushioning or wrapping materials, as applicable, shall be provided
to prevent item and package damage and to prevent free movement of the container contents.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful,
but is not mandatory.)
6.1 Intended use. The tube expanders covered by this specification are intended for use in
all types of tubular heat exchangers.
6.2 Acquisition requirements. Acquisition documents must specify the following:
a. Title, number, and date of this specification
b. Issue of DODISS to be cited in the solicitation, and if required, the specific issue
of individual documents referenced (see 2.1)
c. Expanders other than righthand feed (see 3.2)
d. For 1/2 inch size and above tube expanders, whether 3/8-inch square shank or No. 1
Morse taper shank is required (see 3.2.1)
e. Thickness of tube sheet in which tube is to be expanded or maximum depth of expansion
(see 3.2.5)
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