Model: 121918LH

Rotary Switch

Special Features:

Item must comply with requirements of defense electronics supply center production standard no. L04372; for navy nuclear propulsion plant products only; jumper supplied

Properties:

Thread Class
2b 1st mounting facility
Hazardous Locations/environmental Protection
Shock resistant and vibration resistant
Overall Length
8.938 inches
Overall Height
2.500 inches
Overall Width
3.000 inches
Unthreaded Mounting Hole Diameter
0.203 inches 2nd mounting facility
Distance Between Mounting Facility Centers
2.094 inches 2nd mounting facility
Individual Section Quantity
22
Switch Contact Basic Design
Nonpile-up nonsymmetrical
Mounting Facility Circle Radius
1.156 inches 1st mounting facility
Mounting Method
Bracket 1st mounting facility and threaded hole 1st mounting facility
Mounting Method
Bracket 2nd mounting facility and unthreaded hole 2nd mounting facility
Features Provided
Actuator knob and dummy section
Thready Qty Per Inch (tpi)
24 1st mounting facility
Thread Size
0.190 inches 1st mounting facility
Contact Voltage Rating In Volts
120.0 lowest dc voltage rating at sea level
Contact Voltage Rating In Volts
125.0 ac at sea level
Contact Voltage Rating In Volts
350.0 highest dc voltage rating at sea level
Mounting Facility Pattern
Four position circular 1st mounting facility
Mounting Facility Pattern
Two position in-line 2nd mounting facility
Switch Actuator Indexing Position Quantity
4 single actuator
Criticality Code Justification
Feat
Terminal Type
Tab w/screw
Switch Actuator Positioning Increment
90.0 degrees single actuator
Contact Load Current Rating
2.0 amperes inductive load highest dc voltage rating at sea level and 2.0 amperes resistive load highest dc voltage rating at sea level
Contact Load Current Rating
10.0 amperes inductive load lowest dc voltage rating at sea level and 10.0 amperes resistive load lowest dc voltage rating at sea level
Contact Load Current Rating
10.0 amperes resistive load ac at sea level
Style Designator
Tap, circuit selector
Thread Series Designator
Unc 1st mounting facility
NSN
5930-01-330-8618
Part Number
121918LH
Description
Switch,rotary
CAGE
82121

A switch actuated by a definite angular rotation of the switch shaft about its axis. For items having rated actuation travel and pressure characteristics, see switch, sensitive. Excludes relay, rotary; switch, stepping; and switch, telephone (as modified).

Part 121918LH NSN 5930-01-330-8618

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02134
FIIG:
A052B0
Concept No.:
1
App. Key:
A
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:
A
ESD:
ESD:
MMAC:
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
2.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536509025
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, rotary, rated at over 5 a, for a voltage not exceeding 1,000 volts

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