MIL-DTL-641/11D
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Jacks may be multiple mounted on a panel in accordance with the minimum center-to-center
dimensions specified in table I.
4. The schematic shows required switching operations but does not indicate a required mechanical
arrangement of the parts.
FIGURE 1. Dimensions and configuration - Continued.
TABLE I. Dimensions.
Center to center dimensions for
multiple mounting on panel
In direction of
At right angle to
Type
pileup (min)
pileup (min)
JJ-088
.625
1.750
REQUIREMENTS:
Dimensions and configuration: See figure 1.
Insertion and withdraw forces shall be as follows.
Insertion force -
10 pounds (maximum).
Withdraw force -
3 pounds (minimum).
-
10 pounds (maximum).
Spring life test is applicable. Test plug TP327, in accordance with MIL-DTL-641, shall be used.
The Part or Identifying Number (PIN) consists of the letter M, the basic specification number, the
specification sheet number, and a number for jack type. (see table II)
M
641
/11
-1
Type designation
Specification sheet number
Specification number
M prefix
PIN example: M641/11-1 indicates type JJ-088 telephone jack.
TABLE II. PIN.
Switching action upon
Dash number
Type
Connection
Mounting
insertion of plug
1
JJ-088
Tip, and sleeve, twin
Double lug
Double break
2