Part Categories

Mainsprings

	Part	Factory Part Number
	Mainspring	47309	Part Number: JA406 Company: Illinois Size: 16 Factory No.: 47309 Alt Factory No.: Dennison Width: 21 Dennison Strength: 6.5 Length: 27 Metric Width: 3.00 Metric Strength: 0.155 End: Double Brace and Hole
	Mainspring	47315	Part Number: JA410 Company: Illinois Size: 16 Factory No.: 47315 Alt Factory No.: Dennison Width: 18 Dennison Strength: 4.5 Length: 20.5 Metric Width: 2.70 Metric Strength: 0.185 End: T-Brace
	Mainspring	47317	Part Number: JA412 Company: Illinois Size: 16 Factory No.: 47317 Alt Factory No.: 573 Dennison Width: 18 Dennison Strength: 3 Length: 20.5 Metric Width: 2.70 Metric Strength: 0.21 End: T-Brace
	Mainspring	47321	Part Number: JA414 Company: Illinois Size: 16 Factory No.: 47321 Alt Factory No.: 1770 Dennison Width: 18 Dennison Strength: 5 Length: 22.5 Metric Width: 2.70 Metric Strength: 0.18 End: T-Brace
	Mainspring	47326	Part Number: JA415 Company: Illinois Size: 16 Factory No.: 47326 Alt Factory No.: Dennison Width: 18 Dennison Strength: 5.5 Length: 22.5 Metric Width: 2.70 Metric Strength: 0.175 End: Motor Barrel Brace
	Mainspring	47327	Part Number: JA415 Company: Illinois Size: 16 Factory No.: 47327 Alt Factory No.: Dennison Width: 18 Dennison Strength: 5.5 Length: 22.5 Metric Width: 2.70 Metric Strength: 0.175 End: Motor Barrel Brace
	Mainspring	47331	Part Number: JA416 Company: Illinois Size: 16 Factory No.: 47331 Alt Factory No.: Dennison Width: 18 Dennison Strength: 5.5 Length: 22.5 Metric Width: 2.70 Metric Strength: 0.175 End: Double Brace and Hole
	Mainspring	47333	Part Number: JA419 Company: Illinois Size: 16 Factory No.: 47333 Alt Factory No.: 124 Dennison Width: 20 Dennison Strength: 3.5 Length: 20.5 Metric Width: 2.90 Metric Strength: 0.2 End: T-End
	Mainspring	47334	Part Number: JA421 Company: Illinois Size: 16 Factory No.: 47334 Alt Factory No.: Dennison Width: 16 Dennison Strength: 3 Length: 20 Metric Width: 2.50 Metric Strength: 0.21 End: T-End