Model: 20257

Electrical Plug Connector

Properties:

Thread Class
2a and 2b
Thread Direction
Right-hand
Body Style
Straight shape, internal coupling w/backshell
Overall Diameter
1.469 inches
Threaded Device Type
Back shell and coupling facility
Mating End Quantity
1
Contact Position Arrangement Style
20-4 single mating end
Contact Removability
Nonremovable single mating end single contact grouping
Contact Maximum Current Rating In Amps
41.0 single mating end single contact grouping
Contact Maximum Ac Voltage Rating In Volts
900.0 single mating end single contact grouping
Contact Maximum Dc Voltage Rating In Volts
1250.0 single mating end single contact grouping
Polarization Method
Keyway or multiple keyway
Insert Position In Deg
0.0
Shell Type
Split
Connector Locking Method
Internally threaded coupling ring
Connector Cable Strain Relief Method
Conduit nut
Thread Length
0.375 inches and 0.625 inches
Thread Size
1.188 inches and 1.250 inches
Terminal Location
Back single mating end single contact grouping
Contact Surface Treatment
Silver single mating end single contact grouping
Insert Material
Plastic melamine single mating end
Terminal Type
Solder well single mating end single contact grouping
Shell Material
Aluminum alloy
Shell Surface Treatment
Cadmium
Insert Material Specification
Mil-m-14 military specification single material response single mating end
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 surface silver
Precious Material
Silver
Thread Series Designator
Unef and unef
NSN
5935-00-237-9711
Part Number
20257
Description
Connector,plug,electrical
CAGE
82423

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 20257 NSN 5935-00-237-9711

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:
S
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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