. . . . "Test stand, aircraft, hydraulic systems, electric motor driven, type MK-1, NSN 4920-01-033-8318, part number 2-01-6"@en . . . "Operator's, aviation unit, and intermediate maintenance manual (including repair parts and special tools list) test stand, aircraft, hydraulic systems, electric motor driven, type MK-1, NSN 4920-01-033-8318, part number 2-01-6"@en . . "Handbooks and manuals"@en . . . .