RR-C-271F
5.2.3.1 Container modification. Shipping containers exceeding 200 pounds gross weight shall be provided with a minimum of two, 3 x 4-inch nominal wood skids laid flat; or a skid or sill- type base which will support the material and facilitate handling by mechanical handling equipment during shipment, stowage, and storage.
5.3 Palletized unit loads. When specified (see 6.2), containers shall be palletized in accordance with MIL-STD-2073-1.
5.4 Marking.
5.4.1 Chains and attachments. In addition to any special marking required (see 6.2), interior (unit) packs, shipping containers, and palletized unit loads shall be marked in accordance with MIL-STD-2073-1 for military agencies and FED-STD-123 for civil agencies and shall include barcodes and applicable packaging acquisition options herein as specified herein (see 6.2).
6. NOTES
INFORMATION FOR GUIDANCE ONLY. (This section contains information of a general or explanatory nature that is helpful, but is not mandatory.)
6.1 Intended use.
6.1.1 Type I, chain, welded steel. Type I is steel chain intended for general service. Type I, class 1, is a special analysis alloy steel recommended for overhead lifting and wherever long life and extremely high tensile strengths are desired.
6.1.2 Type II, chain, weldless. Type II, class 11, mechanical communication chain is intended for use in pulleys used on a line of signal transmission of mechanical telegraphs, i.e. ship's bridge to engine room communication.
6.1.3 Type IV, shackles. Shackles, with the exception of class 1 round pin and cotter, are intended for general use including rigging.
6.1.4 Type XV, end links. End links in accordance with this specification are intended for use with fueling at sea rigging.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a. Title, number, and date of this specification.
b. Type, class, and style of chain; and type, grade, and class of attachments required
(see 1.2.1 and 1.2.2).
c. Material required for type II, classes 1, 2, 3, 4, 6, 7, 8, 9, and 10 chains (see 3.1.2). d. Material required for type II, class 5 bead chain, and type IX, X, and XI
fasteners/couplings (see 3.1.3).
e. Finish required, if other than that specified (see 3.2.1). f. Finish specific to type I chain (see 3.2.1.1).
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