ST-1200 Line Size 7 Receptacle - S-Spring

The information on the ST-1200 Size 7 products are provided for existing applications. For new applications, please use the Size 65 products.

S-Spring Receptacle Picture S-Spring Receptacle Dimension Drawing

Standard Material: Music wire

Finish:

Optional Stainless Steel: Stainless steel, 17-7 PH on special order. Change the suffix on the basic part number from "Z3CT" to "SS".

Weight: .0100 lb (4.54 g)

Recommended Deflection: .031 to .074 in. (.79 to 1.88 mm).

Part Number Spring Height (H)
(inch)
± .010
(mm)
± .25
1219-7225-Z3CT .225 5.72
1219-7250-Z3CT .250 6.35
1219-7275-Z3CT .275 6.99
1219-7300-Z3CT .300 7.62

Calculating Stud Length
RECEPTACLES
TOTAL PILEUP = Panel + Support + Gap
Total Pileup Drawing
  1. First calculate the total pileup. Add Panel thickness + Support thickness + Gap thickness.
    NOTE: The gap is the distance between the panel and the support, and it may be the result of panel and support shape, use of a grommet or other stud retainer, or by use of a spacer. The Gap Thickness dimension will equal zero when the panel surface is flush to the support surface. For example, Gap = 0 when the underside of the panel is counter bored to accept the thickness of the stud retainer.
  2. Using the calculated total pileup for the chosen receptacle, locate your total pileup in one of the ranges in the table below and find the Stud Grip size to the left. The Stud Grip is added to the end of the stud part number. For example: in the stud part number "121J-750-Z3CT", the Stud Grip is "50".

English
(inch)
Stud Grip 1219-7300-Z3CT 1219-7275-Z3CT 1219-7250-Z3CT 1219-7225-Z3CT
35 .090-.114 .115-.139 --- ---
40 .140-.164 .165-.189 .190-.214 .215-.239
50 .240-.264 .265-.289 .290-.314 .315-.339
60 .340-.364 .365-.389 .390-.414 .415-.439
70 .440-.464 .465-.489 .490-.514 .515-.539
80 .540-.564 .565-.589 .590-.614 .615-.639
90 .640-.664 .665-.689 .690-.714 .715-.739
100 .740-.764 .765-.789 .790-.814 .815-.839
110 .840-.864 .865-.889 .890-.914 .915-.939
120 .940-.964 .965-.989 .990-1.014 1.015-1.039
Metric
(mm)
Stud Grip 1219-7300-Z3CT 1219-7275-Z3CT 1219-7250-Z3CT 1219-7225-Z3CT
35 2.29-2.90 2.92-3.53 --- ---
40 3.56-4.17 4.19-4.80 4.83-5.44 5.46-6.07
50 6.10-6.71 6.73-7.34 7.37-7.98 8.00-8.61
60 8.64-9.25 9.27-93.88 9.91-10.52 10.54-11.15
70 11.18-11.79 11.81-12.42 12.45-13.06 13.08-13.69
80 13.72-14.33 14.35-14.96 14.99-15.60 15.62-16.23
90 16.26-16.87 16.89-17.50 17.53-18.14 18.16-18.77
100 18.80-19.41 19.43-20.04 20.07-20.68 20.70-21.31
110 21.34-21.95 21.97-22.58 22.61-23.22 23.24-23.85
120 23.88-24.49 24.51-25.12 25.15-25.76 25.78-26.39