This is a Brand Name Only solicitation. No substitutions will be authorized. Interested vendors must be an authorized distributor for the requested material and are required to provide an authorized d... This is a Brand Name Only solicitation. No substitutions will be authorized. Interested vendors must be an authorized distributor for the requested material and are required to provide an authorized distributor letter from the Original Equipment Manufacturer (OEM) with their quotation. NSN: [2990 01-671-9305] DESCRIPTION: ACTUATOR, GOVERNOR MFG NAME: WALKER ENGINEERING ENTERPRISES PART NBR: 8242-172 QUANTITY: 2 EA PLEASE SEE ATTACHED.