Table 6--1. Size Correlation for Socks
b. Foot Measuring Device.
(1) Use. The foot measuring device (Fig. 6--2), NSN 8335--00--421--2147, is used to
measure the individuals feet for the initial try--on size. There are two other foot measuring
devices that can be used to measure mens or womens feet for the initial try--on size, NSN
8335-01-463-7079 for men and NSN 8335-01-463-8139 for women. The devices measure the
heel to ball length and the ball width. Even though the devices have proven to be 75%
accurate, the actual size to be issued must be determined after the footwear has been tried on
and checked for proper fit.
(2) Operation. To ensure an accurate measurement, make sure the individual is wearing
properly fitted socks; black or olive green wool socks for combat boots and nylon black socks for
low quarter shoes. Womens dress oxfords should be fitted while wearing nylons. There should
be no apparent tightness or excessive fullness of the material. Following are the operation
procedures for the foot measuring device.
(a)Seat the individual being fitted so the foot measuring device is located directly below
the knees. In this position, the legs and feet are relaxed and can be easily placed on the device.
(b) Place hands over the instep and position both feet on the device making sure the feet
are fitted snugly against the heel stop.
(c) Have the individual stand and remove hands from instep.
(d) Adjust the heel to ball measurement bar until it fits properly against the ball joint of
the great toe. Hold in position and slide the ball width bar until it gently presses against the outer
ball of the foot.
(e) First read the heel to ball length measurement, then find the same length number on
the ball width bar and determine the appropriate width. For example: if the heel to ball length
measures size 8, and the number 8 on the ball width bar is in the R width block, the try--on size
would be 8R. If the number on the ball width bar is near the dividing line of two widths, select the
larger width for the try--on size.
(f) Repeat on opposite foot.
c. Selection for Initial Try--On Size.
(1) Determining Length Size. Measure each foot separately and select initial try--on size by
comparing the measured length of each foot. Select the initial try--on size as follows:
(a)If both feet measure the same length size, select that size for the initial try--on. For
example, if both feet measure size 8, select size 8 for initial try--on.