Model: 990-SK7

Rotary Switch

Special Features:

Escutcheon engraved with shore, gen, off, bt3-2, bt3-1

Properties:

Thread Class
2a single mounting facility
Individual Section Quantity
14
Longest Horizontal Distance Between Mounting Centers
2.000 inches single mounting facility
Shortest Horizontal Distance Between Mounting Centers
1.000 inches single mounting facility
Longest Vertical Distance Between Mounting Centers
2.180 inches single mounting facility
Mounting Method
Bracket single mounting facility and threaded hole single mounting facility
Features Provided
Actuator knob and legend plate
Thread Size
0.190 inches single mounting facility
Contact Voltage Rating In Volts
125.0 lowest ac voltage rating at sea level
Contact Voltage Rating In Volts
355.0 dc at sea level
Contact Voltage Rating In Volts
500.0 highest ac voltage rating at sea level
Mounting Facility Pattern
Isosceles triangle single mounting facility
Switch Actuator Indexing Position Quantity
5 single actuator
Terminal Type
Screw
Switch Actuator Positioning Increment
45.0 degrees single actuator
Contact Load Current Rating
20.0 amperes resistive load lowest ac voltage rating at sea level
Contact Load Current Rating
0.4 amperes resistive load dc at sea level
Contact Load Current Rating
5.0 amperes resistive load highest ac voltage rating at sea level
Precious Material And Location
Rotor and stator surfaces silver
Precious Material
Silver
Thread Series Designator
Unf single mounting facility
NSN
5930-01-225-9353
Part Number
990-SK7
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 990-SK7 NSN 5930-01-225-9353

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:
S
ESD:
ESD:
MMAC:
CRITL:
X

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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