Original Entex Specification:

Entex Die Springs

Stock Code	Free Length (mm)	Rate N/mm	To Work In - Hole Size (mm)	To Work Over - Rod Size (mm)	Load When Solid N/mm	Solid Length (mm)
400	25.4	84.1	19	9.53	180	19.1
402	50.8	38.5	19	9.53	180	31.5
403	63.5	31.5	19	9.53	180	40.7
401	38.1	52.5	19	9.53	180	26.2
404	38.1	80.6	25.4	12.7	300	25.4
405	50.8	63	25.4	12.7	300	31
406	63.5	49	25.4	12.7	300	39.2
407	76.2	42	25.4	12.7	300	43.4
413	101.6	49	31.8	15.9	400	66
417	152.4	31.5	31.8	15.9	400	93
415	127	38.5	31.8	15.9	400	80
414	114.3	45.5	31.8	15.9	400	75
416	139.7	35	31.8	15.9	400	86
412	88.9	56	31.8	15.9	400	59
410	63.5	77.1	31.8	15.9	400	42
409	50.8	98.1	31.8	15.9	400	33.5
408	38.1	140.1	31.8	15.9	400	27.5
411	76.2	63	31.8	15.9	400	51
418	38.1	182.1	38.1	19	425	28
422	88.9	73.5	38.1	19	510	54
420	63.5	101.6	38.1	19	540	40.5
425	127	52.5	38.1	19	600	71
427	152.4	45.5	38.1	19	600	85.5
426	139.7	49	38.1	19	600	80.5
423	101.6	70	38.1	19	600	58.5
424	114.3	59.5	38.1	19	600	66
421	76.2	91.1	38.1	19	600	47
419	50.8	136.6	38.1	19	600	32
428	50.8	171.6	50.8	25.4	800	34.5
429	76.2	119.1	50.8	25.4	800	47.5
430	101.6	80.6	50.8	25.4	800	60.5
431	127	66.5	50.8	25.4	800	74
432	152	59.5	50.8	25.4	800	87.5

THE COIL SPRING EXPERTS!