Model: 18-491

Radio Frequency Coil

Properties:

Reliability Indicator
Not established
Turn Quantity
6-1/2 single component single winding
Coil Form Type
Hollow single component
Core Construction
Powdered single component
Adjustment Device Drive Type
Slotted screw single component
Body Length
0.625 inches
Body Outside Diameter
0.215 inches
Inclosure Type
Fully enclosed
Mounting Facility Quantity
1 single group
Mounting Method
Threaded hole single group
Rating Method
Winding turns single component single winding
Thready Qty Per Inch (tpi)
40 single group
Thread Size
0.112 inches single group
Winding Conductor Size
0.02846 inches american wire gage single component single winding
Quality Factor
100 single component single winding
Adjustment Method And Quantity
1 adjustable core single component
Thread Series Designator
Unc single group
Terminal Type And Quantity
2 wire lead
NSN
5950-00-824-3603
Part Number
18-491
Description
Coil,radio Frequency
CAGE
09250

An item consisting of a partial turn as one or more turns of wire or other conductive material which constitutes one continuous untapped winding. It may be wound or formed in other than a circular manner and may be self-supporting, requiring no coil form. It is specifically designed to furnish inductive reactance in a circuit carrying radio frequency current ranging from 20 kilohertz (kilocycles) and above. It may include tuning devices, integral resistors and capacitors; however, excludes filter (as modified). The coil has only two electrical terminals. For items having tapped winding or more than one winding - see transformer, radio frequency. For coils wound on resistors, which are designed to be inserted in the circuit of a radio frequency stage to suppress high frequency parasitic oscillations, see suppressor, parasitic.

Part 18-491 NSN 5950-00-824-3603

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06338
FIIG:
A058B0
Concept No.:
App. Key:
B
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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
063420
UFC:
35355
LTL:
RATING VARIABLE
LCL:
--
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8504500000
  • SITC: 77125
  • End Use: Generators, accessories
  • NAICS: 334416
  • USDA: 1

Freight Class: Inductors, nesoi

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