MIL-PRF-62136B
3.4.3.2 Foam inflation pressure equivalent. An average air inflation pressure equivalent
shall be established for each size and type of tire as specified herein (see 4.7.2).
3.4.4 Valve hole. The valve hole or valve slot of all rims or wheels shall be effectively
covered to prevent foam compound escaping during processing of tire.
3.5 Extreme temperature ability.
3.5.1 For storage. Tires shall have inherent capability of storage without deterioration, in
ambient air temperature ranging from +125 F to -65 F (+51.6 C to -53.8 C).
3.6 Performance.
3.6.1 Road service. The foam inflated tire shall withstand the road service test specified
herein and shall show no evidence of broken cords, separation of tread, ply, cord or bead, or of
cracking in the tread or sidewalls sufficient to expose the fabric and shall show no evidence of
liquidifying, crumbling or degradation of the foam material. There shall be no fabric visible as
a result of treadwear (see 4.8.1).
3.6.2 Gun fire. The foam inflated tires shall be subjected to gun fire as specified herein
(see 4.8.2, table VI). Following gun fire, the tire shall continue to operate and conform to this
specification and shall show no evidence of operational failure.
3.7 Age of assembly. Foam inflated wheel and tire assemblies furnished on orders of any
size, group, or type under this specification shall be not more than six months old on the date of
shipment by the manufacturer. On new vehicles, the equipment manufacturer shall be responsible
for assuring that the assemblies mounted on the vehicle shall not be more than 12 months old (see
4.9.1).
3.8 Identification marking.
3.8.1 Permanent marking. Each tire shall be branded, molded, or have permanently
affixed in an unobstructed location on the sidewall the following information (see 4.9.2):
a. Original manufacturer's name, brand name, or trademark.
b. Nominal size.
c. Load designation (ply rating or symbol mark).
d. Serial number.
e. PIN number.
3.8.2 Special labeling. Each foam inflated wheel, and tire assembly shall have a label on
the tread face. The label shall stipulate the tire size, ply or ply rating, foam inflated, ply material
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