MIL-DTL-28731 Connectors, Electrical, Rectangular, Removable Contact, Formed Blade, Fork Type \(For Rack And Panel And Other Applications\) General Specification ForThis specification covers rectangular, electrical connectors with removable formed blade; fork type contacts intended for use in electronic and electrical equipment \(see 6.1\).

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MIL-DTL-28731F

3.4.2.2 Crimping tool. The crimping tool shall be in accordance with MIL-C-22520/17.

3.4.2.3 Insertion and removal tools. Insertion and removal tools shall be used to assemble and

disassemble contacts. These tools shall be in accordance with MIL-I-81969/11, MIL-I-81969/13,

MIL-I-81969/4 and MIL-I-81969/5.

3.4.2.4 Wire inspection. Subsequent to crimping of the wire to the contact, visual inspection shall be

made to ascertain that the wire fully engages the wire crimp tabs.

3.4.2.5 Wrappost geometry. Wrappost geometry shall be in accordance with figures 1 and 2 for the

wire sizes shown.

Number

Minimum wrappable length

Of wrapped

Connections

AWG

.185 (4.70)

.219 (5.56)

.226 (5.74)

.258 (6.55)

.303 (7.69)

.327 (8.31)

.391 (9.93)

.320 (8.13)

.388 (9.85)

.402 (10.21) .466 (11.83)

.556 (14.12)

.604 (15.34)

.732 (18.59)

.455 (11.56) .557 (14.15) .578 (14.68) .674 (14.43)

.809 (20.55)

.881 (22.37) 1.073 (27.25)

NOTES:

1. Dimensions are in inches.

2. Metric equivalents are in parenthesis and are given for information only.

FIGURE 1. Wrappable length.