Model: U28-5556

Rotary Switch

Special Features:

Four dummy terminals on front of section one and eight dummy terminals on rear of section two

Properties:

Thread Class
2a single mounting facility
Thread Length
0.375 inches single mounting facility
Overall Length
4.625 inches
Overall Height
1.938 inches
Overall Width
1.625 inches
First Flat Length
0.375 inches single actuator
Flat Height
0.187 inches single actuator
Shaft Diameter
0.250 inches single actuator
Shaft Length
1.000 inches single actuator
Nonturn Device Radius
0.531 inches at 10: 00 o'clock
Individual Section Quantity
2
Nonturn Device Type
Tab at 10: 00 o'clock
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 1st section rear
Pole Quantity
1 2nd section front
Throw Quantity
4 1st section rear
Throw Quantity
4 2nd section front
Mounting Method
Threaded bushing single mounting facility
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
110.0 ac at sea level
Contact Voltage Rating In Volts
28.0 dc at sea level
Switch Actuator Indexing Position Quantity
4 single actuator
Shaft Type
Round, flatted single actuator
Terminal Type
Tab, solder lug
Contact Switching Action
Makes before breaks 1st section rear
Contact Switching Action
Makes before breaks 2nd section front
Switch Actuator Positioning Increment
30.0 degrees single actuator
Contact Load Current Rating
0.5 amperes resistive load ac at sea level
Contact Load Current Rating
1.0 amperes resistive load dc at sea level
Style Designator
Circular wafer, bushing mount
Thread Series Designator
Unef single mounting facility
NSN
5930-00-548-4630
Part Number
U28-5556
Description
Switch,rotary
CAGE
3B150

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 U28-5556 NSN 5930-00-548-4630

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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