Model: 257-2

Electrical Plug Connector

Special Features:

Contact configuration ossm

Properties:

Thread Class
2b
Thread Direction
Right-hand
Body Style
Straight shape, internal coupling
Overall Length
Between 0.427 inches and 0.467 inches
Overall Diameter
0.250 inches
Environmental Protection
Corrosion resistant and shock resistant and vibration resistant
Cable Entrance Diameter
Between 0.088 inches and 0.090 inches
Threaded Device Type
Coupling facility
Mating End Quantity
1
Contact Position Arrangement Style
Nonstd single mating end
Contact Removability
Nonremovable single mating end single contact grouping
Contact Maximum Ac Voltage Rating In Volts
1000.0 single mating end single contact grouping
Shell Type
Solid
Connector Locking Method
Internally threaded coupling nut
Connector Cable Strain Relief Method
Shrinkable tubing
Radio Frequency Type Contact Characteristic Impedance In Ohms
50.0 single mating end single contact grouping
Thready Qty Per Inch (tpi)
36
Thread Size
0.190 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 and copper single mating end single contact grouping
Insert Material
Plastic tetrafluoroethylene single mating end
Terminal Type
Solder well single mating end single contact grouping
Contact Material Specification
Qq-c-530, 1/2 h federal specification single material response single mating end single contact grouping
Shell Material
Steel comp 303
Shell Surface Treatment
Gold and nickel
Shell Material Specification
Qq-s-764, cond a federal specification single material response
Included Contact Quantity
1 single mating end single contact grouping
Included Contact Type
Coaxial pin single mating end single contact grouping
Precious Material And Location
Contact surface and shell surface gold
Precious Material And Weight
0.105 gold grains, troy
Precious Material
Gold
Thread Series Designator
Uns
NSN
5935-00-335-8305
Part Number
257-2
Description
Connector,plug,electrical
CAGE
26805

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 257-2 NSN 5935-00-335-8305

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:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061680
UFC:
34570
LTL:
RATING VARIABLE
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
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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