MIL-DTL-2845E (SH)
(b)
Grade C material shall not be in contact with metal surfaces or be
used as an intimate wrap.
3.7.10 Commercial. Commercial preservation of equipment, accessories,
components, and repair parts shall be in accordance with ASTM D 3951.
3.8
Packing. Packing shall be level A or commercial, as specified (see
6.2).
3.8.1
Level A.
3.8.2 General requirements. Shipping containers shall be of similar
construction, of uniform size, and of minimum cube and tare consistent with
required protection. Special tools, when furnished, shall be packed with the
equipment for which they are intended. Contents of the shipping container
shall fit so the packed unit forms a compact, nonshifting load. Wood, plywood,
or wood-cleated boxes shall be modified by the addition of skids. Unless
otherwise specified herein, application of skids shall be in accordance with
PPP-B-601, PPP-B-621, or the applicable crate specification when used. Except
where otherwise specified herein, crates shall be used for the shipment of
individual items exceeding the weight limitations of the wood, plywood, or
wood-cleated boxes. Unless otherwise specified (see 6.2), selection of the
shipping container shall be at the packaging activity's option. The reference
preservation, packing, and car loading figures herein are intended for general
guidance use. Wherever reference is made to wood, wood sheathing, or wood
boxes, plywood sheathing (see 3.8.2.2) and plywood boxes in accordance with
PPP-B-601 are acceptable alternates.
3.8.2.1 Anchoring, blocking, bracing, and cushioning. Except as
otherwise specified herein, equipment, accessories, and repair parts shall be
anchored, blocked, braced, and cushioned, as applicable, in accordance with
the appendix to the applicable container specification. Cushioning materials
shall conform to materials specified in 3.7.8.
3.8.2.2
Wood and plywood containers.
3.8.2.2.1 Plywood. Plywood sheathing, including container tops
(crates), shall be in accordance with APA PS-1. Unless otherwise specified
(see 6.2), plywood selection for container use shall be as follows:
(a)
Multiple trip containers. - Multiple-trip plywood containers (see
6.4.2) shall be in accordance with APA PS-1, minimum grade A-C,
preserved as specified in 3.8.2.2.2.1, or in accordance with APA
PS-1, marine grade.
(b)
Single trip containers. - Single-trip plywood containers shall be
in accordance with APA PS-1, exposure 1, minimum grade C-D.
3.8.2.2.2 Multiple-trip containers. Containers including interior
packing media shall be fabricated and assembled to certify re-use. Unless
otherwise specified herein for wood or plywood boxes, the box cover (sides,
ends, and top) may be assembled and fastened with nails; however, the
assembled cover shall be fastened to the container platform or base by screws
or bolts. Additional guidance for the application, selection, and spacing
requirements for fasteners is contained in the applicable container
specification.
3.8.2.2.2.1 Preservative treatment for multiple-trip containers. Unless
otherwise specified (see 6.2), all multiple-trip (reusable) containers and all
of the finished wood or plywood members and parts shall be preserved in
accordance with AWPA C1 and C2 for lumber and AWPA C9 for plywood, for "above
ground use". When containers are painted, preservation shall be accomplished
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