Extension Spring #42, 1-1/8"x5-3/4"x.128WG

Extension Spring #42, 1-1/8"x5-3/4"x.128WG

The 18542 Extension Spring #42 is a heavy-duty spring steel extension spring built to deliver strong, reliable tension in demanding mechanical applications. Featuring a 5-3/4" length, dual diameter profile (3/4" and 1-1/8"), and .128 wire gauge, this spring is designed for durability and consistent performance. With loop ends for secure attachment, it’s ready to handle repeated stretch cycles in equipment, shop, or farm use—pull after pull.

Country of Origin
Varies by production batch

Key Features / Specifications

• Part Number: 18542
• Nominal Size: SRM42
• Product Type: Extension spring
• Material: Spring steel
• Style: Loop end
• Length: 5-3/4"
• Diameter 1: 3/4"
• Diameter 2: 1-1/8"
• Wire Diameter: .128 WG
• Function: Provides controlled extension tension and reliable return force
• Construction: Designed for repeated stretch and recovery cycles

Ideal For

• Equipment repairs and replacement applications
• Mechanical systems requiring strong extension tension
• Farm, industrial, and shop machinery
• Situations where loop ends allow quick, secure installation
• Applications where a lighter spring just wouldn’t cut it