TM-55-2320-280-14 HMMWV Transportability Guidance M998 Series Download
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25 August 1988 TM 55-2320-280-14 Figure 6-2. Typical blocking and tiedown of HMMWV in LASH lighter or SEABEE barge. Table 6-1. Bill of Materials for Blocking and Tiedown of HMMWV (Fig. 6-1) Item Description Approximate quantity Lumber ................................... Douglas-fir, or comparable; straight-grain, free from material defects; Fed Spec MM-L-751H: 4 x 4-inch. 60 linear feet Nails ....................................... Common, steel; flathead; bright or cement-coated; Fed Spec FF-N-105B: 20d, 50d .......................................................... 20 Wire rope ............................... 6 x 19, IWRC; improved plow steel; preformed, regular-lay; Fed Spec RR-W-140C; 3/8-inch................................................. 60 feet Clamps ................................... Wire rope, U-bolt clamps, saddled, single-grip, steel, Crosby heavy-duty, or equal; MIL-STD 16842: 3/8-inch. 24 Turnbuckles ............................ Eye- and jaw-type, 1/2-inch diameter x 6-inch takeup; Fed Spec FF-T-791B, or equal............................................................ 4 Thimbles ................................ Standard, open-type, 3/8-inch.................................................... 8 Table 6-2. Application of Materials for Blocking and Tiedown of HMMWV (Fig. 6-1) Item No. Required Application A ........ 2 Side blocks. Each consists of 4- x 4- x 238-inch lumber. Locate one piece against outside of wheels on each side of HMMWV. B ........ 2 End blocks. Each consists of 4- x 4- x 64-inch lumber. Locate on top of item A and against wheels, as shown in figure 6-2. Nail to item A with four 50d nails at each end of item B. 6-3