Insulating Shoulder Washers
FEATURES
•
•
•
•
Available in nylon or polyphenylene sulfide
Chemically inert [no known solvents under 200°C (392°F)]
Maximum recommended service temperature of 260°C (500°F)
Recommended torque is 0.565Nm to 0.678Nm (5 to 6 inch-pounds)
on all shoulder washers except –7, which has recommended torque
of 0.452Nm (4 inch-pounds)
Polyphenylene Sulfide PPS Shoulder Washers
FIGURE A
FIGURE B
"B"
"A"
"A"
"D"
DIA
5.59
(0.220)
"E"
DIA
"C"
"E"
Note:This figure is common to
figures A and B
Part number
7721-1PPSG
7721-2PPSG
7721-3PPSG
7721-5PPSG
7721-6PPSG
7721-7PPSG*
7721-10PPSG
“A” Dim
“B” Dim
“C" Dim
"D" Dim
"E" Dim
Screw size
Figure
7.11 (0.280)
7.11 (0.280)
7.11 (0.280)
7.92 (0.312)
7.11 (0.280)
5.46 (0.215)
7.62 (0.300)
3.18 (0.125)
4.70 (0.185)
3.18 (0.125)
0.79 (0.031)
0.79 (0.031)
0.81 (0.032)
2.41 (0.095)
1.07 (0.042)
1.07 (0.042)
1.07 (0.042)
1.19 (0.047)
1.19 (0.047)
1.02 (0.040)
1.40 (0.055)
2.84 (0.112)
2.84 (0.112)
2.84 (0.112)
3.66 (0.144)
3.00 (0.118)
2.95 (0.116)
2.97 (0.117)
3.81 (0.150)
3.81 (0.150)
3.56 (0.140)
4.50 (0.177)
3.68 (0.145)
3.43 (0.135)
3.56 (0.140)
4
4
4
6
4
4
A
A
A
A
A
A
B
**
4
Note: A single gate extension, not to exceed 0.64 (0.025) in length, is allowable on the outside of all shoulder washers.
* Design allows insertion in the tab of a TO-220.
** Also for M3 screw.
Nylon Shoulder Washers
"C"
"A"
"E"
Shoulder
Washer
"D"
0.33
(0.013)
"B"
Material is nylon type 6
Part number
7721-11NG
7721-13NG
7721-15NG
“A” Dim
“B” Dim
"C" Dim
3.56/3.81 (0.140/0.150)
N/A
"D" Dim
"E" Dim
7.80/8.05 (0.307/0.317)
5.89/6.05 (0.232/0.238)
5.59/6.10 (0.220/0.240)
2.87/3.00 (0.113/0.118)
2.87/3.00 (0.113/0.118)
2.90/2.95 (0.114/0.116)
3.76/3.89 (0.148/0.153)
3.43/3.56 (0.135/0.140)
3.43/3.58 (0.135/0.140)
1.09/1.35 (0.043/0.053)
1.19/1.40 (0.047/0.055)
0.51/0.64 (0.020/0.025)
1.73/1.91 (0.068/0.075)
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