The U.S. Department of Defense created the National Stock Number system in order to create a uniform naming system for all the components that are sourced, stocked, and procured within the federal supply system. NSNs are 13 digit serial numbers that classify and describe an item. Within the NSN are the smaller classification numbers, Federal Supply Group, Federal Supply Class, country code, and National Item Identification Number. Typically in the format, XXXX-XX-XXXXXXX, the first two digits of the NSN are the Federal Supply Group. The following two digits are the Federal Supply Class. The FSG and the FSC can be referenced in the Department of Defense’s H2 handbook

Federal Supply Group 30: Mechanical Power Transmission Equipment. We stock parts under FSG 26 and the following FSCs:

This federal supply group is a smaller supply group that includes all Mechanical power transmission equipment. For example: gears, pulleys, sprockets, and transmission chains all fall in the same classification. We provide assistance for the purchasing of these parts 24 hours a day, 7 days a week, 365 days a year. We have an instant response for FSG 30 part requirements, so visit us at www.oneclickpurchasing.com or call one of our friendly sales staff at 412-212-0606.

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