This is U.S. Federal Stock Number/NSN :6850-00-264-6573.
Bag Dimensions: 4.5" x 5.0"
Desiccare's Unit Pak line offers drying applications for all sizes of packaging. These Unit Paks meet or exceed MIL Spec 3464, Type I & II.  A "unit" refers to a Military Specification for packaging. The term "unit" is a quantity of desiccant, which will absorb a set percentage of its weight at certain levels of humidity. For convenience, one "unit" is approximately equal to one ounce.

Montmorillonite Clay is a natural occuring adsorbent. This clay will successfully regenerate for repeated use at very low temperatures without substantial deterioration or swelling. Clay is inexpensive and highly effective within normal temperature and relative humidity ranges. Used in a wide variety of applications such as: Rolled Steel, computers, aerospace, automobile parts, military equipment, crates, etc.
Available in 1/6, 1/3, 1/2, 1, 2, 4, 6, 8, 16 or 80 unit paks.
Desiccant Materials: Silica Gel, Indicating Silica Gel, Clay, Molecular Sieve and Carbon.
Available Substrates: Tyvek (1/6-16 unit - FDA Approved), Kraft (1/6-4 unit) and Sewn Bag (8-80"unit).
Packaged in 5 gallon pails (1/6-2 "unit") or 30 gallon drums (1-80"unit).