Model: 1977557-1

Rotary Switch

Properties:

Thread Length
0.360 inches single mounting facility and 0.390 inches single mounting facility
Overall Length
1.862 inches
First Flat Length
0.460 inches single actuator and 0.490 inches single actuator
Flat Height
0.218 inches single actuator
Shaft Diameter
0.247 inches single actuator and 0.253 inches single actuator
Shaft Length
0.985 inches single actuator and 1.015 inches single actuator
Overall Diameter
1.015 inches
Nonturn Device Radius
0.375 inches at 1: 00 o'clock
Individual Section Quantity
1
Nonturn Device Type
Flatted bushing at 1: 00 o'clock
Operating Tempurature Range
-65.0/+85.0 degrees celsius
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 single section rear
Throw Quantity
4 single section rear
Mounting Method
Threaded bushing single mounting facility
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
28.0 ac at sea level
Shaft Flat/slot Angular Location
0.0 degrees from nonturn device single actuator
Switch Actuator Indexing Position Quantity
4 single actuator
Shaft Type
Round, flatted single actuator
Terminal Type
Tab, solder lug
Contact Switching Action
Breaks before makes single section rear
Switch Actuator Positioning Increment
36.0 degrees single actuator
Switch Actuator Stop Device Type
Fixed stop single actuator
Contact Load Current Rating
1.0 amperes resistive load dc at sea level
Style Designator
Tap, circular, bushing mount
Thread Series Designator
Unef single mounting facility
NSN
5930-00-300-1947
Part Number
1977557-1
Description
Switch,rotary
CAGE
55972

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 1977557-1 NSN 5930-00-300-1947

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:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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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