Model: M3900-4FA

Rotary Switch

Properties:

Thread Class
2a 2nd mounting facility
Thread Length
0.312 inches 2nd mounting facility
Overall Length
1.416 inches
First Flat Length
0.250 inches single actuator
Flat Height
0.094 inches single actuator
Shaft Diameter
0.125 inches single actuator
Shaft Length
0.375 inches single actuator
Overall Diameter
0.687 inches
Individual Section Quantity
1
Operating Tempurature Range
-65.0/+85.0 degrees celsius
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 single section front
Throw Quantity
7 single section rear
Mounting Method
Printed circuit 1st mounting facilitythreaded bushing 2nd mounting facility
Thread Size
0.250 inches 2nd mounting facility
Contact Voltage Rating In Volts
115.0 ac at sea level28.0 dc at sea level
Rotor Through Connection Quantity
1 single section
Switch Actuator Indexing Position Quantity
7 single actuator
Shaft Type
Round, flatted single actuator
Terminal Type
Printed circuit
Contact Switching Action
Breaks before makes single section rear
Switch Actuator Positioning Increment
30.0 degrees single actuator
Contact Load Current Rating
500.0 milliamperes resistive load ac at sea level250.0 milliamperes inductive load dc at sea level and 500.0 milliamperes resistive load dc at sea level
Style Designator
Tap, circular, 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 2nd mounting facility
Specification Data
81349-mil-s-3786/39 government specification
NSN
5930-01-349-8972
Part Number
M3900-4FA
Description
Switch,rotary
CAGE
31946

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 M3900-4FA NSN 5930-01-349-8972

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:
--
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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