MIL-DTL-45449C
3.7.1 Assembly of pieces. Side and end assemblies shall not contain any major defect;
specifically holes greater than ¼ inch.
3.7.2 Glue. The glue used in Linderman joints shall be urea-resin glue conforming to
ASTM D4690.
3.8 Wood imperfections.
3.8.1 Individual pieces. The individual pieces of lumber used to construct Grade A or
Grade B pallets shall be free of defects listed below:
a. Presence of decay
b. Warp, bowl, cup, or crook-pieces of lumber in an assembly which provides an uneven
bearing surface or in themselves vary from a true or plane surface more than 1/8 inch per lineal
foot.
c. Divergence in the grain of a piece of lumber in a pallet assembly which exceeds one
inch in ten inches or less.
d. Wane more than ¾ inches in width and more than ¼ inch in thickness of the piece.
Wane extending the entire length of the piece will be acceptable if the above dimensions are not
exceeded and the wane does not interfere with required marking.
e. More than five worm holes in any one piece. Allowed worm holes shall not exceed
1/4 inch in diameter with one hole not exceeding 5/8 inch in diameter.
f. Knots shall not interfere with nailing or drilling. Loose knots and knot holes are
allowed up to 1/2 inch in diameter. Sound knots are allowed up to 1/3 the width of the piece.
g. Chipped or torn grain, or machine skip of more than 1/8 inch variation
and more than the width of the piece in length.
h. Insects, beetles, powder post beetle deterioration and any other infestation at time of
delivery that may result in subsequent pallet destruction. To ensure that the pallet is completely
free of the oak wilt fungus, all hardwood and softwood component parts shall be absolutely free
from bark.
3.8.2 Non-acceptable lumber imperfections. Lumber shall not contain small streaks or
pockets of pitch, stain or machine burn that interferes with the marking surfaces of the pallet.
3.8.3 Pallet assemblies. The Grade A and Grade B pallet assemblies shall be free of the
defects listed below:
a. Dimensional requirements not in conformance with applicable drawings (See 6.10).
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