Extension Spring: OD 0.078 in, FL 0.375 in, Music WireInstrument Extension Series (inch)Precision Springs for Precision Products. Lee Spring EI 007AA 03M is a precision extension spring from the Instrument Extension Series (inch) series, engineered for applications requiring reliable quality extension springs. This spring features a 0.078-inch outside diameter (1.98 mm) with 0.064-inch loop inside diameter (1.63 mm) and extends from a free length of 0.375 inch (9.53 mm) to a maximum extended length of 1.169 inch (29.69 mm). Made from Music Wire with a 0.007-inch wire diameter (0.18 mm), the spring delivers a spring rate of 0.292 lb/inch (0.051 N/mm) through its 34.3 total coils with an initial tension of 0.025 lb (0.111 N). The spring supports a maximum load of 0.257 lb (1.143 N) at full extension with a body length of 0.247 inch (6.27 mm). The spring features Random loop position and Pre-coated with Tin finish for optimal performance. About the Extension Spring Instrument SeriesThe Lee Spring Extension Spring Instrument Series includes a wide range of size and rate combinations in a smaller, highly precise spring design. Selections are sorted in ascending order based on outside diameter. Instrument Series Extension Springs are available in both inch and metric sizes. Sizes range from outside diameters from .063" up to .157" and free lengths from .250" to 1.181". Inch Series springs are available in Music Wire, Type 302 Stainless Steel and Type 316 Stainless Steel. Metric Series springs are available in Music Wire and Type 302 Stainless Steel. The Music Wire springs are made from coated wire or provided with a plating finish for light corrosion resistance. The Type 302 Stainless Steel springs are passivated, while Type 316 Stainless Steel springs are passivated and ultrasonically cleaned. Instrument Extension Series (inch) Extension Springs have useful applications in various industries, including:
...and many more applications 232911
Product
Extension OD 0.078 in, Length 0.375 in, Music Wire
Product
Extension OD 1.98 mm, Length 9.53 mm, Music Wire
Part Number
EI 007AA 03M
Series
Instrument Extension Series (inch)
Outside Diameter (inch)
0.078
Outside Diameter (cm)
0.198
Outside Diameter (mm)
1.98
Wire Diameter (inch)
0.007
Wire Diameter (cm)
0.08
Wire Diameter (mm)
0.18
Max Load (gm)
116.6
Max Load (lb)
0.257
Max Load (kg)
0.1166
Max Load (N)
1.143
Rate (gm/cm) 52
Rate (gm/mm) 5.2
Rate (kg/cm) 0.052
Rate (kg/mm) 0.0052
Rate (lb/in) 0.292
Rate (N/cm) 0.51
Rate (N/mm) 0.051
Max Extended Length (cm) 2.969
Max Extended Length (in) 1.169
Max Extended Length (mm)
29.69
Initial Tension (gm)
11.3
Initial Tension (kg)
0.0113
Initial Tension (lb)
0.025
Initial Tension (N)
0.111
Free Length (cm)
0.953
Free Length (inch) 0.375
Free Length (mm) 9.53
Material Music Wire
Loop Inside Diameter (cm) 0.163
Loop Inside Diameter (in) 0.064
Loop Inside Diameter (mm) 1.63
Ends Standard Loops
Loop Position Random
Direction of Wind Factory Option
Finish Pre-coated with Tin
0.007
0.078
0.004
0.375
0.02
34.3
0.025
0.005
0.292
0.029
1.169
0.257
0.007
0.247
Random
0.078
0.004
0.375
0.02
34.3
0.025
0.005
0.292
0.029
1.169
0.257
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| Quantity | Price |
|---|---|
| 1 - 19 | $8.870 |
| 20 - 49 | $5.370 |
| 50 - 99 | $2.840 |
| 100 - 199 | $1.770 |
| 200 - 299 | $1.529 |
| 300 - 399 | $1.419 |
| 400 - 499 | $1.321 |
| 500 - 599 | $1.231 |
| 600 - 699 | $1.155 |
| 700 - 799 | $1.090 |
| 800 - 899 | $1.032 |
| 900 - 999 | $0.989 |
| 1000 | $0.955 |
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