Truth 15.30 Nested Split Arm operator (folding handle type) has Straight link, used with wood and Aluminum clad windows 
Used by Weather Shield on their wood casement window.
This operator has been discontinued and limited to existing inventory

Application: Casement windows, Sill Mount
Operator Style: Nested Housing design for use with folding handle 
Window Type: Wood or Vinyl
Operator Type: Split Arm with Straight link 
Arm Length: 5 inch
Link Length: Rivet to Stud post Hole: 4-1/2 inch
Link Mount: Mounted on Top of main arm
Detach clip: None
Color: Limited to existing colors or finishes shown 
Handed: Yes, Left and Right handed as shown 
Material: Zinc Die Cast Body with E-Gard or stainless steel arms
Markings: Main Body, Truth # 45251 
Markings on Main Arm: # 40351
Markings: Straight Arm link, Truth # 31850 

Sold Each, No screws or crank handle

NOTE: See additional Pictures for line drawings

Related Hardware - Crank Handles:
55311 - Regular Handle 
55312 - Folding handle 
55313 - T-Handle
55316 - Round Handle
55317 - Contour Handle