Mil-Spec Packaging

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Part Number	Dimensions	Material	Thickness
Part Number	Dimensions	Material
2CY36UF5C131K	36" Wide x 200 Yards	MIL-PRF-131K Class 1 Grade 500m	5.4 mil
2CY48UF5C131K	48" Wide x 200 Yards	MIL-PRF-131K Class 1 Grade 500m	5.4 mil
2CY36UF1K131K (Contact us)	36" Wide x 200 Yards	MIL-PRF-131K Class 1 Grade 1000m	6.2 mil
2CY50UF1K131K (Contact us)	50" Wide x 200 Yards	MIL-PRF-131K Class 1 Grade 1000m	6.2 mil
MS360-36Y200	36" Wide x 200 Yards	MARVELSEAL360 Made in USA and used by the US Military	5.2 mil
MS360-48Y200	48" Wide x 200 Yards	MARVELSEAL360 Made in USA and used by the US Military	5.2 mil
2CY36T1C1G360 (Contact us)	36" Wide x 200 Yards	MIL-PRF-81705 Type 1 Class 1 Grade 360	5.3 mil
2CY50T1C1G360 (Contact us)	50" Wide x 200 Yards	MIL-PRF-81705 Type 1 Class 1 Grade 360	5.3 mil
2CY36T1C1G600 (Contact us)	36" Wide x 200 Yards	MIL-PRF-81705 Type 1 Class 1 Grade 600	6.4 mil
2CY50T1C1G600 (Contact us)	50" Wide x 200 Yards	MIL-PRF-81705 Type 1 Class 1 Grade 600	6.4 mil

MIL-SPEC POUCHES

What is MIL-SPEC MIL-PRF-131 Class 1?

MIL-PRF-131K Class 1 is the most commonly used moisture barrier grade material in MIL-SPEC packaging. It is a high barrier foil laminate material developed to deliver the highest performace moisture, oxygen and grease protection. As a Qualified Products List (QPL) approved material, it is used extensively by the United States Military.There are several different types of MIL-SPEC packaging materials (for example: 81705 is for electronic products). MIL-PRF-131 Class 1 grade which is a moisture barrier material designed for packaging government products, usually military items, that are moisture sensitive. Thus, one will often find a desiccant (MIL-D-3464) packet inside a package or a mil-spec pouch that has been produced from MIL-PRF-131K material.

What are MIL-DTL-117 Standards?

MIL-DTLs are detailed specifications that outline how to achieve a specific requirement. One subcategory of packaging, MIL-DTL-117, specifies the nature of heat-sealed bags for military uses, like preserving food or storing supplies that are susceptible to corrosion. Heat-sealed bags can serve many purposes as personnel are planning for contingencies or conducting training scenarios. The DoD has set up in-depth criteria and checks to make these bags and pouches resilient and reliable.

What the bags are made of influences their ability to keep out air and unwanted chemicals. MIL-PRF-121, MIL-PRF-131, MIL-PRF-22191 and MIL-PRF81705 are the most widely used materials. The composition of the bags has to fall within the relevant type and class comparable to the style and purpose. Warding off water or grease takes a treated substance, and foil, plastic, kraft paper or laminate can create the protection your contents need. The thickness of the material is also managed to promote cost-efficiency.

MIL-I-8835 (FORMERLY MS20003-2)

MIL-I-8835 is a humidity indicator. It consists of a card that contains three spots, each one indicating a different level of humidity. The spots change color from blue to pink when the humidity threshold has been reached. From top to bottom, they measure 50% relative humidity, 40% relative humidity and 30% relative humidity, each one accurate to within 5%. The use of MS20003 can inform packaging facilities about the relative humidity in the packaging environment and whether it is suitable for sensitive applications.

Contact us to learn which of our products conform to MIL-I-8835 or any of the previously mentioned packaging standards.

IMPAK moisture vapor barrier materials meet all MIL-SPECs. Ask about manufacturing custom sizes in these MIL-SPEC packaging materials.