Model: 255986-MF4E

Rotary Switch

Properties:

Thread Class
2a single mounting facility
Thread Length
0.250 inches single mounting facility
Overall Length
3.688 inches
Overall Height
2.344 inches
Overall Width
1.766 inches
First Flat Length
0.500 inches single actuator
Flat Height
0.216 inches single actuator
Shaft Diameter
0.248 inches single actuator and 0.251 inches single actuator
Shaft Length
0.938 inches single actuator
Nonturn Device Radius
0.531 inches at 3: 00 o'clock
Individual Section Quantity
4
Nonturn Device Type
Tab at 3: 00 o'clock
Operating Tempurature Range
-65.0/+85.0 degrees celsius
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 1st section front
Pole Quantity
1 1st section rear
Pole Quantity
1 2nd section front
Pole Quantity
1 2nd section rear
Pole Quantity
2 3rd section rear
Pole Quantity
2 4th section rear
Throw Quantity
4 1st section front
Throw Quantity
4 1st section rear
Throw Quantity
4 2nd section front
Throw Quantity
4 2nd section rear
Throw Quantity
8 3rd section rear
Throw Quantity
8 4th section rear
Mounting Method
Threaded bushing single mounting facility
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
150.0 ac at altitude
Contact Voltage Rating In Volts
300.0 ac at sea level
Contact Voltage Rating In Volts
30.0 dc at altitude
Contact Voltage Rating In Volts
30.0 dc at sea level
Shaft Flat/slot Angular Location
315.0 degrees from nonturn device single actuator
Switch Actuator Indexing Position Quantity
8 single actuator
Shaft Type
Round, flatted single actuator
Terminal Type
Tab, solder lug
Contact Switching Action
Breaks before makes 1st section front
Contact Switching Action
Breaks before makes 1st section rear
Contact Switching Action
Breaks before makes 3rd section rear
Contact Switching Action
Breaks before makes 4th section rear
Contact Switching Action
Breaks before makes 2nd section front
Contact Switching Action
Breaks before makes 2nd section rear
Switch Actuator Positioning Increment
15.0 degrees single actuator
Detent Rotational Torque Range
+2.000/+8.000 inch-pounds single actuator
Switch Actuator Stop Device Type
Fixed stop single actuator
Contact Load Current Rating
350.0 milliamperes resistive load dc at altitude
Contact Load Current Rating
50.0 milliamperes resistive load ac at sea level
Contact Load Current Rating
500.0 milliamperes resistive load dc at sea level
Contact Load Current Rating
70.0 milliamperes resistive load ac at altitude
Style Designator
Circular wafer, bushing mount
Test Data Document
81349-mil-s-3786 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
5930-00-225-9465
Part Number
255986-MF4E
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 255986-MF4E NSN 5930-00-225-9465

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:
0.3000lbs
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: 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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