Model: 121909LQ

Rotary Switch

Special Features:

Item must comply with requirements of desc production standard no. L03160; for navy nuclear propulsion plant products only

Properties:

Thread Class
2b 1st mounting facility
Hazardous Locations/environmental Protection
Dustproof
Overall Length
8.000 inches
Overall Width
4.375 inches
First Flat Length
1.375 inches single actuator
Flat Height
0.250 inches single actuator
Shaft Diameter
0.375 inches single actuator
Shaft Length
1.375 inches single actuator
Unthreaded Mounting Hole Diameter
0.312 inches 2nd mounting facility
Individual Section Quantity
9
Knob Manufacturer Code
82121
Longest Horizontal Distance Between Mounting Centers
2.281 inches 1st mounting facility
Longest Horizontal Distance Between Mounting Centers
3.812 inches 2nd mounting facility
Longest Vertical Distance Between Mounting Centers
2.281 inches 1st mounting facility
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 each section rear
Throw Quantity
3 each section rear
Mounting Method
Bracket 2nd mounting facility and unthreaded hole 2nd mounting facility
Mounting Method
Bracket 1st mounting facility and threaded hole 1st mounting facility
Features Provided
Actuator knob
Thready Qty Per Inch (tpi)
20 1st mounting facility
Thread Size
0.250 inches 1st mounting facility
Contact Voltage Rating In Volts
125.0 ac at sea level
Mounting Facility Pattern
Four position rectangular 1st mounting facility
Mounting Facility Pattern
Two position in-line 2nd mounting facility
Switch Actuator Indexing Position Quantity
4 single actuator
Shaft Type
Round, flatted, threaded hole single actuator
Criticality Code Justification
Feat
Terminal Type
Tab w/screw
Contact Switching Action
Breaks before makes 1st section rear
Contact Switching Action
Breaks before makes 4th section rear
Contact Switching Action
Breaks before makes 5th section rear
Contact Switching Action
Breaks before makes 6th section rear
Contact Switching Action
Breaks before makes 2nd section rear
Contact Switching Action
Breaks before makes 3rd section rear
Contact Switching Action
Breaks before makes 8th section rear
Contact Switching Action
Makes before breaks 7th section rear
Contact Switching Action
Makes before breaks 9th section rear
Switch Actuator Positioning Increment
90.0 degrees single actuator
Switch Actuator Stop Device Type
Fixed stop single actuator
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
Reference Number Differentiating Characteristics
Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications
NSN
5930-01-140-4344
Part Number
121909LQ
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 121909LQ NSN 5930-01-140-4344

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:
C

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:
A
SPI No.:
SPI Rev.:
SPC Mkg:
99
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
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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