Section VII. WEAPONS AND FIRE CONTROL EQUIPMENT

TM 476-10

(6) When it can be expected that the item

will be dried using procedure D-1 except that

barrel bores, chamber, and similar surfaces will be dried

may be subject to damage during shipment, it is

by procedure D-4 using clean, dry, lint-free swabs or

advisable that additional cushioning protection be

rags. Drying of optical surfaces is done during the

utilized. This is especially true with high cost or highly

cleaning process. Immediately after cleaning, all open

sensitive items.

and closed antifriction bearings will be dried by

g. When the term "snug fitting" is referenced, a

procedure D-1, D-2, or D-3 per TM 38-230-1. When D-1

fiberboard container will be selected to adequately

is used, bearings must not spin or rotate rapidly. Slow

enclose the contents without forcing the contents in

rotation or oscillation during drying is permitted to allow

place or allowing excessive void areas.

When

exposure of all surfaces to the air used for drying.

standardor stock-size containers are selected, some

d. Immediately after drying, apply preservative.

void areas may be present; however, adequate

Selection of the preservative material shall be as

cushioning will be provided to prevent free movement of

follows: first choice, VCI; second choice, P-2; and third

the item or items. When containers are fabricated, the

choice, P-1. If VCI is used, it should be in the form of a

item or items will be carefully measured to provide the

bore strip and outer wrap. If a bore strip is not available,

minimum practical container size.

When multiple

cut a strip from the wrap the length and diameter of the

quantities are involved, the items will be arranged to

bore, insert the strip into the tube, and completely wrap

provide a square container, if possible, or at least one

the item with VCI wrap. If P-2 is used, apply by dipping

with two dimensions being the same. Fast packs

or brushing and allow excess to drain. After P-2 or P-1

(PPPB-1672) shall be considered when weight, size, and

is applied, wrap complete item with greaseproof barrier

fragility factors are compatible.

material and secure with tape.

h. The following guidance is offered in determining

e. Greaseproof wraps will be applied by enclosing

the total quantity of like items allowed per container

the item to cover preserved surfaces. The wrap will

where specific quantities are not stated. The quantity

conform snugly to the item without causing puncture or

may be determined by any of the following ways or as

rupture of the wrap.

local conditions dictate:

f. Various cushioning materials are referenced

(1) The weight or size limits of the container.

primarily throughout this section and are generally

(2) The weight and size of a container that

applied as follows:

may reasonably be lifted and handled by one man (70

(1) Cellulosic or foam material is used to

pounds).

cushion projecting surfaces to prevent rupture of wraps

(3) The size and shape of a container that will

and barrier bags and as an overwrap to protect fragile

permit palletizing.

and delicate components, and it is used to minimize or

i. When required, blocking and bracing will be

control item movement within barrier bags and

employed during the packing operation to provide

containers. It may also be used as dunnage to fill

physical and mechanical protection to the item(s). Free

container voids with irregularshaped items.

movement of the item(s) will be prevented, and

(2) Bound fiber offers more resistance to

concentrated loads will be transformed to large areas or

vibration and shock from impact and is generally applied

faces of the container. General guidance is available in

to large or heavy items. This material may be used both

TM 38-230-2, and sample blocking format is referenced

in unit and shipping containers to distribute shock forces

in chapter 3 of this manual (see fig 3-1 thru 3-10).

over a large area by isolating the item from container

j. Basic issue items (BII) are ancillary items

surfaces. Heavier items (20 pounds and up) require a

needed for operation that are not assembled to the end

minimum 2-inch thickness to prevent "bottoming out" of

item for use but are used by the crew for operation of

the material when subjected to severe shock forces.

the end item. Common or special tools qualify if needed

(3) In some instances, it may be necessary to

for operation but repair parts are not included. End

employ both materials to prevent physical or mechanical

items may or may not have BII. When BII is applicable

damage to the item.

to the end items, the BII components will be processed

(4) Fiberboard sheet stock may also be used

as follows, except that cleaning will be by C-1 and

to cushion or separate items in containers.

drying by D-1 unless otherwise specified:

(5) When the type of cushioning material

(1)

Nonmetallic items (canvas, wood,

used within reusable metal or plastic containers is

plastic, etc.). Items will be cleaned with a clean, dry

known to the packaging activity, the same type of

brush or cloth. DO NOT APPLY preservatives. Where

cushioning material should be used for those items TM

746-10 when applying cushioning for nonreusable (wood

or fiberboard) containers.

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