#WK4-21C-516 Cable Loopback Plug | Electrical Connectors

WK4-21C-516

Electrical Plug Connector

NSN 5935-00-665-4692

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
006654692

Product Technical Spec.

Thread Class:
2b
Thread Direction:
Right-hand
Body Style:
Straight shape, internal coupling w/strain relief
Body Length:
Between 2.047 inches and 2.141 inches
Overall Diameter:
Between 1.031 inches and 1.062 inches
Cable Entrance Diameter:
Between 0.328 inches and 0.359 inches
Threaded Device Type:
Coupling facility
Mating End Quantity:
1
Contact Position Arrangement Style:
Wk-4 single mating end
Contact Removability:
Nonremovable single mating end single contact grouping
Contact Maximum Current Rating In Amps:
10.0 single mating end single contact grouping
Polarization Method:
Keyway or multiple keyway
Insert Position In Deg:
0.0
Shell Type:
Solid
Connector Locking Method:
Internally threaded coupling ring
Connector Cable Strain Relief Method:
Cable clamp
Thready Qty Per Inch (tpi):
6
Thread Size:
0.875 inches
Terminal Location:
Back single mating end single contact grouping
Contact Material:
Copper alloy single mating end single contact grouping
Contact Surface Treatment:
Silver single mating end single contact grouping
Insert Material:
Paper single mating end
Terminal Type:
Solder well single mating end single contact grouping
Shell Material:
Aluminum alloy
Shell Surface Treatment:
Cadmium
Included Contact Quantity:
4 single mating end single contact grouping
Included Contact Type:
Round socket single mating end single contact grouping
Precious Material And Location:
Contact surfaces silver
Precious Material And Weight:
0.004 silver grains, troy
Precious Material:
Silver
Thread Series Designator:
Uns
NSN:
5935-00-665-4692
Item Name:
Cable Loopback Plug
Cage Code:
71468

Cross Referenced Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
WK4-21C-5/16
Cage Code:
2B395
RNCC:
3
RNVC:
2
RNAAC:
ZZ
Status:
A
MSDS:
SADC:
Part Number:
ACWK4-21C-5/16
Cage Code:
0J4E7
RNCC:
5
RNVC:
2
RNAAC:
ZZ
Status:
A
MSDS:
SADC:
Part Number:
4040
Cage Code:
71313
RNCC:
5
RNVC:
2
RNAAC:
XX
Status:
A
MSDS:
SADC:

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Pricing & Availability

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Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Electrical Connectors
--------- Plug-in Electronic Compon Sockets
------------ P/N WK4-21C-516

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Last Updated: 08/14/2025