Model: FK37-4-21C1

Electrical Plug Connector

Properties:

Thread Class
2b
Thread Direction
Right-hand
Body Style
Straight shape, internal coupling w/strain relief
Body Length
Between 2.422 inches and 2.516 inches
Overall Diameter
Between 2.000 inches and 2.031 inches
Cable Entrance Diameter
Between 1.000 inches and 1.031 inches
Threaded Device Type
Coupling facility
Mating End Quantity
1
Contact Position Arrangement Style
Fk-37 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
Contact
Shell Type
Split
Connector Locking Method
Internally threaded coupling nut
Connector Cable Strain Relief Method
Cable clamp
Thready Qty Per Inch (tpi)
6
Thread Size
1.812 inches
Terminal Location
Back single mating end single contact grouping
Contact Material
Copper alloy single mating end single contact grouping
Contact Surface Treatment
Gold single mating end single contact grouping or silver single mating end single contact grouping
Insert Material
Plastic phenolic single mating end or plastic melamine single mating end
Terminal Type
Solder well single mating end single contact grouping
Shell Material
Aluminum alloy
Shell Surface Treatment
Cadmium
Included Contact Quantity
37 single mating end single contact grouping
Included Contact Type
Round socket single mating end single contact grouping
Precious Material And Location
Contact surfaces gold and contact surfaces silver
Precious Material And Weight
0.037 gold grains, troy and 0.037 silver grains, troy
Precious Material
Gold and silver
Thread Series Designator
Un
NSN
5935-00-173-6091
Part Number
FK37-4-21C1
Description
Connector,plug,electrical
CAGE
71468

An electrical fitting with electrical contacts, constructed to be affixed to the end of a cable, conduit, coaxial line, cord or wiring for convenience in joining with other electrical connector(s) or printed wiring board and is not designed to be mounted on a bulkhead, chasses, panel, printed wiring board, or the like. Excludes jack, telephone; jack, tip; plug, telephone; plug tip; insert, electrical connector; connector body (as modified); and socket, plug-in, electronic components. see also lead assembly, electrical; wiring harness (as modified); and cable assembly (as modified). for items without inserts, see shell, electrical connector.

Part FK37-4-21C1 NSN 5935-00-173-6091

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01938
FIIG:
A039B0
Concept No.:
App. Key:
G
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
G
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061680
UFC:
34570
LTL:
RATING VARIABLE
LCL:
77.5
WCC:
658
TCC:
Z
SHC:
5
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536695050
  • SITC: 77258
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Electrical plugs & sockets, for a voltage not exceeding 1,000 v, nesoi

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