TB 9-2300-422-20
Section I. INTRODUCTION
1-1. Purpose.
This bulletin is published to provide security of tactical wheeled vehicles. These instructions are based on requirements
established by directive (AR 190-51 Security of Army Property at Unit and Installation Level).
1-2. Scope.
a. This bulletin establishes minimum requirements needed to achieve the protection required for tactical vehicles of
all classes.
b. If vehicles are equipped with devices that attain a degree of security equal to that provided by those described in
this TB, vehicles need not be modified solely to make them exactly compatible with the devices illustrated.
1-3. Installation Level.
Organizational Maintenance shall perform the installation of security devices described within the bulletin.
Section II. PROCEDURES
2-1. General
a. All vehicles listed (Table 1) will utilize the appropriate clamp to attach the chain to the steering column. Typical
clamp is shown (Fig. 1).
Table 1. Recommended Clamps for Listed Vehicles
VEHICLE
CLAMP w/Bolts, Nut, Washer
NSN
M151,1/4 Ton Trk
MS53041-1
M561, 1 1/4 Ton Trk
MS53041-2
M35, 2 1/2 Ton Trk
MS53041-2
M39/M809, 5 Ton Trk
MS53041-2
M656, 5 Ton Trk
MS53041-2
M123, 10 Ton Trk
MS53041-2
M746 HET
MS53041-2
M911, 20 Ton Trk
MS53041-3
1
