TB 9-5210-201-50
SECTION I
GENERAL
1. Purpose and Scope
5210-356-4645 (fig. 1) and is to be used by calibration personnel. Since the calibration
personnel are trained and qualified in the usage of calibration standards, detailed
instructions concerning operation and use of the standards are not contained in this
bulletin.
b. This bulletin contains an illustration of a typical spring tension gage, as well as a
diagram showing equipment setup.
2. Description. Spring tension gages 5210-356-4645 are lever type gages intended for
measuring tension of relay springs. Additional data is listed in a through c below.
a. Identification
Nomenclature ------------------------------ SPRING TENSION GAGES.
Federal stock No.-------------------------- 5210-356-4645.
Manufacturer------------------------------- Western Electric Co., Inc.
Manufacturer's model No. -------------- 70 D, D, G, H, J.
Size -------------------------------------------- 5 7/32 x 1 5/16 x 17/32 in.
Weight ---------------------------------------- 1 lb (approx.)
Reference ------------------------------------ Manufacturing Instructions.
b. Specifications
Graduation
Type 70D Type 70F
Type 70G Type 70H
Type 70J
(grams)
5
1
5
2
5
Range
(grams)
50-0-50
10-0-10
50-0-50
0-20
0-150
Accuracy
(grams)
2.5
0.5
2.5
1.0
2.5
c. Program Data
Calibration interval----------------------- 90 days
Time required for calibration ---------- 1/2 hr (approx.)
Calibration level --------------------------- Secondary transfer.
Calibration technique -------------------- Physical.
3. General Instructions
a. Calibration Data Card. During the performance of this procedure, annotate DA
Form 2416 in-accordance with TM 38-750.
b. Unit Under Test. Spring tension gages 5210-356-4645 will be referred to as "unit
under test."
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