Stock Springs
Lee Spring offers a comprehensive range of over 25,000 Stock Spring designs. Lee Spring stock springs are enhanced by secondary operations to improve performance and corrosion resistance including free plating, free grinding and free passivation. Lee Spring's stock springs meet stringent global environmental RoHS and REACH standards. Select from thousands of stock springs designs from inventory and available for immediate delivery. Lee Spring can help your design process by providing CAD models of stock springs.
Stock Spring Selection
Lee Spring offers a wide range of products in stock, plus custom capabilities to meet your specifications. From the Bantam™ Mini Series up to the HEFTY™ Die Series, Lee Spring carries a stock spring to fit most common applications. Lee Spring can also custom manufacture springs to meet your exact specifications.
Immediate Delivery
Lee Spring carries millions of stock springs all available for immediate delivery, with an extensive inventory of Compression, Extension, Torsion, Belleville, MIL-SPEC and specialty springs are on hand.
Global Flexibility - Technical Engineering Support Around the World
Lee Spring partners with your business to find solutions that meet your geographic requirements wherever your business takes you in the world. Lee Spring has locations located around the world ready to assist with both stock spring and custom springs. Engineering and technical support available to help with the correct stock spring for your application.
Lee Spring offers more value when selecting a stock spring
- Free plating on all music wire stock springs.
- Free grinding on all standard stock compression springs.
- Free passivation on 302, 316 & 17-7 stainless steel stock springs.
- Certificate of Compliance on all stock springs and custom springs.
- Guaranteed RoHS Compliance on all stock springs.
Stock Spring Series Available
Round Wire Compression Springs
Size Range:
Outside Diameter: .025" - 1.937/.64 mm - 49.20 mm
Free Length: .025" - 6/.64 mm - 152.40 mm
Wire Size: .0040" - .177/.10 mm - 4.50 mm
BANTAM™ Mini Compression Springs
• Elgiloy®, a trademark of Elgiloy Ltd. Partnership
• Ends not ground
Instrument Compression Springs (Inch and Metric)
• Ends square, not ground
• Pre-coated Music Wire or Passivated Type 302/304 Stainless
• Passivated & Ultrasonically Cleaned Type 316 Stainless**
Lite Pressure Compression Springs (Inch)
• Passivated & Ultrasonically Cleaned Type 316 Stainless**
Standard Compression Springs (Inch and Metric)
• Squared and Ground Ends
• Plated Music Wire or Passivated Type 302/304 Stainless
• Passivated & Ultrasonically Cleaned Type 316 Stainless**
Heavy Duty Compression Spring (Inch)
• Squared and Ground Ends
• Shot-Peened, and Pre-Set
• Plated Music Wire/Oil Tempered MB Wire or Passivated Stainless
High Pressure Series
• Free Length: .250"-4"
• Squared and Ground Ends
• Shot-Peened and Pre-Set
• Passivated Type 17-7 PH Stainless Steel
• Available in 300, 400, 500 and 600 PSI
HEFTY™ Die Springs
Size Range:
Fit in Hole: .375" - 2"/ 9.53 mm - 50.80 mm
Free Length: 1"- 6"/ 25.40 mm - 152.40 mm
Five Color Coded Series Reflecting Increasing Strengths
• Medium, Medium Plus, Medium Heavy, Heavy, Extra Heavy
Product Materials and Finishes:
• Round Music Wire or Chrome Silicon
• Squared and Ground Ends
• Powder Coated
• Shot-Peened, and Pre-Set
LeeP™ Plastic Composite Compression Springs
Size Range:
Fit in Hole: .375" - 1"/ 9.53 mm - 25.4 mm
Free Length: .375" - 1.25"/ 9.53 mm - 31.75 mm
Product Materials and Finishes:
Six Color-Coded Strengths
• Ultem* Resin: Ultem is a registered trademark of SABIC Innovative Plastics IP BV
REDUX™ Wave Springs
Size Range:
Outside Diameter: .224" - 1.688"/ 5.69 mm - 42.88 mm
Free Height: .075" - 1.75"/ 1.90 mm - 44.45 mm
Product Materials and Finishes:
• Passivated 17-7 PH Stainless Steel
Belleville Washers
Size Range:
Outside Diameter: .188"- 3.375"/4.78 mm - 85.73 mm
Free Height: .075" - 1.75"/ 1.90 mm - 44.45 mm
Product Materials and Finishes:
• Passivated 300 Series Stainless Steel
Extension Springs
Size Range:
Outside Diameter: .063" - 2.0"/1.60 mm - 50.80 mm
Free Length: .250"- 10.0"/ 6.35 mm - 254.00 mm
Wire Size: .007" - .207"/.18 mm - 5.26 mm
Loop Configuration:
• Random position, full diameters machine or crossover loops, except those meeting DIN 2097 (Inline)
• Loop openings approximately one wire diameter
• The direction of wind optional
Product Materials and Finishes:
Instrument Extension Spring Series (Inch and Metric)
• Pre-coated Music Wire or Passivated Stainless Steel
Standard Extension Spring Series (Inch and Metric)
• Plated Music Wire or Passivated Stainless Steel
Torsion Springs
Size Range:
Outside Diameter: .105" - 2.141"/ 2.667 mm - 54.38 mm
Work Over Rod: .062" - 2.141"/ 1.58 mm - 54.38 mm
Leg Length: .375" - 4.25" / 9.53 mm - 107.95 mm
Product Materials and Finishes:
• Free Position of Legs: 90', 180', 270', 360'
• Choice of Left-hand wound or Right-hand wound
• Plated Music Wire or Passivated Stainless Steel
MIL-SPEC Springs: MS24585 Compression and M524586 Extension
Product Materials and Finishes:
• Music Wire, Unplated, Zinc Plated or Cadmium Plated
• Passivated Stainless Steel
• lnline Loops on MS24586
Battery Springs
Multiple configurations to fit AA, AAA, C or D
Product Materials and Finishes:
• Nickel Plated Music Wire
• Silver Coated Beryllium Copper
Constant Force Springs
Product Materials and Finishes:
• Stainless Steel Strip
Note: Type 302 may be substituted with Type 304 at Lee Spring's discretion.
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