MIL-DTL-12883/42F
Test gage details: See table II and MIL-DTL-12883 appendix.
TABLE II. Test gage details. 1/ 2/
Inspection
A
M
C
N
Pin length
B
Test-end dia
Pin-circle dia
Probe-end
(mm)
Pin dia
(mm)
basic
dia
(mm)
(mm)
(mm)
.039 ±.0001
Insertion and
.150 min
.4300
(0.99 ±0.002)
(3.81)
(10.92)
withdrawal force 3/
.150 min
.4300
Contact resistance
(3.81)
(10.92)
.041 ±.0001
.039 ±.0001
.039 ±.0001
.150 min
Contact retention 4/ 5/
(1.04 ±0.002)
(0.99 ±0.002)
(0.99 ±0.002)
(3.81)
.039 ±.0001
.4300
.150 min
Durability 3/
(0.99 ±0.002)
(10.92)
(3.81)
Dimensions are in inches.
1/
2/
Metric equivalents are given for information only.
3/
Test gauge shall be similar in construction to MIL-DTL-12883 appendix.
See MIL-DTL-12883 appendix, contact/retention test gauge.
4/
Total weight of gauge (± 5 percent) 2 ounces (56.7 grams).
5/
Mechanical:
Contact clearance: Clearance between the cavity wall and the contact, with the contact in any
position, shall be such that a .039 inch (0.99 mm) round nose pin with a force of 5 pounds-force
(22.24 newton) will not penetrate between the cavity and contact.
Float: With a pin of .041 inch (1.04 mm) diameter and .271 inch (6.88 mm) length fully inserted in a
socket contact, the contact shall be capable of free movement (float) within the contact cavity.
Insertion and withdrawal force:
Initial:
Initial insertion force: 6 pound-force (22.41 Newton) maximum.
Withdrawal force: 6 pound-force (22.41 Newton) maximum, .18 pound-force (0.08 Newton)
minimum.
After durability testing:
Insertion force: 6 pound-force (22.41 Newton) maximum.
Withdrawal force: 6 pound-force (22.41 Newton) maximum and .125 pound-force (0.56 Newton)
minimum.
5
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