Model: 27-1907-3B12NC1

Rotary Switch

Special Features:

Provide rf interference panel shielding

Properties:

Thread Class
2a single mounting facility
Thread Length
0.410 inches single mounting facility
Hazardous Locations/environmental Protection
Explosion proof
Overall Length
2.492 inches
First Flat Length
0.250 inches single actuator
Flat Height
0.208 inches single actuator and 0.212 inches single actuator
Shaft Diameter
0.248 inches single actuator and 0.252 inches single actuator
Shaft Length
0.780 inches single actuator
Overall Diameter
1.172 inches
Individual Section Quantity
3
Nonturn Device Type
Slotted bushing at 12: 00 o'clock
Operating Tempurature Range
-65.0/+125.0 degrees celsius
Operating Tempurature Range
-65.0 to 125.0 degrees celsius
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 each section front
Throw Quantity
12 each section rear
Mounting Method
Threaded bushing w/panel seal single mounting facility
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
1 each section
Switch Actuator Indexing Position Quantity
12 single actuator
Shaft Type
Round, flatted single actuator
Terminal Type
Tab, solder lug
Contact Switching Action
Breaks before makes each section rear
Switch Actuator Positioning Increment
30.0 degrees single actuator
Contact Load Current Rating
2.0 amperes resistive load ac at sea level and 1.0 amperes inductive load ac at sea level
Contact Load Current Rating
1.0 amperes resistive load dc at sea level and 500.0 milliamperes inductive load dc at sea level
Style Designator
Tap, circular, bushing mount
Test Data Document
81349-mil-s-3786/4 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
5930-00-137-4245
Part Number
27-1907-3B12NC1
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 27-1907-3B12NC1 NSN 5930-00-137-4245

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:
EH
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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