WK4-21C-5/16

View detailed technical data, stock status, and sourcing information for: WK4-21C-5/16
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5935 Electrical Connectors

National Stock Number

5935-00-665-4692

Item Name Code

01938

Assigment Date

01/01/1963 (63 years ago)

2b thread class, 2.047 inches minimum and 2.141 inches maximum body length, 1.031 inches minimum and 1.062 inches maximum overall diameter, right-hand thread direction, straight shape, internal coupling w/strain relief body style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2b
Thread Direction: right-hand
Body Style: straight shape, internal coupling w/strain relief
Body Length: 2.047 inches minimum and 2.141 inches maximum
Overall Diameter: 1.031 inches minimum and 1.062 inches maximum
Cable Entrance Diameter: 0.328 inches minimum and 0.359 inches maximum
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
Thread Quantity Per Inch: 6
Nominal 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

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5935-00-058-4350	No Name Available	06/01/1976
5935-00-231-1769	No Name Available	06/03/1966

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
ACWK4-21C-5/16	Electrical Plug Connector
WK4-21C-5/16	Electrical Plug Connector
WK4-21C5-16	Electrical Plug Connector

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5935-00-665-4692?

The FSCG of the NSN 5935-00-665-4692 is 5935

Does the NSN 5935-00-665-4692 have a Schedule B code assigned?

Yes, the Schedule B code is 8536695050

Does NSN 5935-00-665-4692 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5935-00-665-4692 contain precious materials?

Item contains silver.

Does NSN 5935-00-665-4692 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5935-00-665-4692 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963