MIL-DTL-2427 Box, Ammunition Packing: Wood, NailedThis specification covers three types and nine classes of basic box designs having two exterior vertical cleats on each end as shown in figure 1. Also, it covers the closing and strapping requirements for filled boxes \(see Appendix A\), and prescribe the criteria to be utilized to determine the serviceability of Government furnished boxes \(see Appendix B\). The box may or may not have hinge and hasp hardware, rope handles and double end construction.

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MIL-DTL-2427H (AR)

tolerance of plus or minus 1/32 inch shall apply. Occasional variations in thickness due

to mismanufacture shall be permitted for not more than 10 percent of the surface area of

the box.

3.6.2 Width. The minimum width of any individual board used in the sides, top,

bottom, or ends of a box shall be 2 1/2 inches. (See note)

Note: When authorized by the procuring activity, one board may be less than 2-

1/2 inches wide in any side, top, or bottom, provided that it is butt jointed and fastened to

an adjacent board with corrugated fasteners. The joint shall be made in accordance with

the requirements of 3.3.2 for the repair of full length splits. When nailing the jointed

board, at least one nail shall pass through each end of the narrow piece of the jointed

board.

3.7 Nailing.

3.7.1 Nails. Nails shall be cement coated or chemically etched of cooler, corker,

sinker, or box type to comply with the requirements of ASTM F 1667, Type 1, Style 4B,

7, 8, or 9. Uncoated nails may be used in nailing cleats when the nails pass through both

the cleat and the board and are clinched. Alternatively, for Group II wood only, blunt

pointed or truncated nails may be used in lieu of diamond pointed nails as specified

above, provided the blunt or truncated nail is the same length as specified for the

diamond pointed nail. Alternative fasteners may be used as specified in 3.7.4.

3.7.2 Size. The size of nails for boxes constructed of 11/16 inch thick sides, tops,

bottoms and ends where the nail cannot be clinched shall be 7d for Group I, II and III

woods and 6d for Group IV woods. Boxes constructed with 1/2 inch thick sides, tops,

bottoms and top cleats shall be nailed with 6d nails. When fastening box members where

clinching is required, as in fastening top cleats and end cleats the length of nail shall be

determined by the sum of the minimum thicknesses to be joined plus adequate allowance

for a minimum 1/8 inch clinch.

3.7.3 Spacing. The average spacing of nails holding the sides, top or bottom to the

ends and cleats shall not be greater then the value shown in the Table II and nails shall be

located as shown in figures 1, 8, and 9. Nailing of sides to ends and end cleats shall be in

accordance with figure 8 for class 5 boxes. In the event that it is necessary to exceed this

spacing because of small knots or checks in the nailing end or because of the location of

joints between boards, the distance between any two adjacent nails shall not be greater

than 1 1/2 times the spacing given in Table II.

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