Model: 270749A1

Rotary Switch

Properties:

Thread Class
2a single mounting facility
Thread Length
0.375 inches single mounting facility
Overall Length
1.766 inches
Overall Height
1.016 inches
Overall Width
0.953 inches
First Flat Length
0.359 inches single actuator and 0.391 inches single actuator
Flat Height
0.095 inches single actuator and 0.105 inches single actuator
Shaft Diameter
0.123 inches single actuator and 0.127 inches single actuator
Shaft Length
0.844 inches single actuator and 0.906 inches single actuator
Nonturn Device Radius
0.375 inches at 9: 00 o'clock
Individual Section Quantity
1
Nonturn Device Type
Tab at 9: 00 o'clock
Operating Tempurature Range
-45.0/+145.0 degrees fahrenheit
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
2 single section rear
Throw Quantity
3 single section rear
Mounting Method
Threaded bushing single mounting facility
Thread Size
0.250 inches single mounting facility
Contact Voltage Rating In Volts
110.0 highest dc voltage rating at sea level
Contact Voltage Rating In Volts
28.0 lowest dc voltage rating at sea level
Switch Actuator Momentary Position
Clockwise single actuator and counterclockwise single actuator
Shaft Flat/slot Angular Location
180.0 degrees from nonturn device single actuator
Switch Actuator Indexing Position Quantity
3 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
30.0 degrees single actuator
Switch Actuator Stop Device Type
Fixed stop single actuator
Contact Load Current Rating
1.0 amperes resistive load highest dc voltage rating at sea level
Contact Load Current Rating
500.0 milliamperes resistive load lowest dc voltage rating at sea level
Style Designator
Circular wafer, bushing mount
Test Data Document
81349-mil-s-3786/5 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unef single mounting facility
NSN
5930-00-188-5580
Part Number
270749A1
Description
Switch,rotary
CAGE
76854

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 270749A1 NSN 5930-00-188-5580

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

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:
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:
658
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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