Model: 37-1959

Rotary Switch

Special Features:

Weapon system essential

Properties:

Thread Class
2a single mounting facility
Thread Length
0.437 inches single mounting facility
Overall Length
3.974 inches
First Flat Length
0.250 inches single actuator
Flat Height
0.219 inches single actuator
Shaft Diameter
0.250 inches single actuator
Shaft Length
0.437 inches single actuator
Overall Diameter
1.170 inches
Individual Section Quantity
3
Nonturn Device Type
Slotted bushing at 3: 00 o'clock
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
2 each section front
Throw Quantity
5 each section rear
Mounting Method
Threaded bushing w/panel seal single mounting facility
Features Provided
Push to turn
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
115.0 ac at sea level
Contact Voltage Rating In Volts
28.0 dc at sea level
Shaft Flat/slot Angular Location
180.0 degrees from contact position 1 single actuator
Rotor Through Connection Quantity
2 each section
Switch Actuator Indexing Position Quantity
5 single actuator
Shaft Type
Round, flatted single actuator
Criticality Code Justification
Feat
Terminal Type
Tab, solder lug
Contact Switching Action
Breaks before makes 3rd section rear
Contact Switching Action
Makes before breaks 1st section rear
Contact Switching Action
Makes before breaks 2nd section rear
Switch Actuator Positioning Increment
30.0 degrees single actuator
Contact Load Current Rating
1.0 amperes inductive load ac at sea level
Contact Load Current Rating
1.0 amperes inductive load dc at sea level
Precious Material And Location
Terminal surfaces and contacts silver
Precious Material
Silver
Style Designator
Tap, circular, bushing mount
Thread Series Designator
Unf single mounting facility
NSN
5930-01-176-0171
Part Number
37-1959
Description
Switch,rotary
CAGE
91812

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 37-1959 NSN 5930-01-176-0171

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:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
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:
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: 8536509020
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

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

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