Part Number 30-278-1

Rotary Switch

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
30-278-1
Demil:
No
Shelf Life:
UOM:
NIIN:
001628655

Part Information
Case internally grounded

NSN
National Stock Number:
5930-00-162-8655 5930001628655
TXT
Description:
Rotary Switch
INC
INC
Item Name Code:
02134
MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
2a single mounting facility
MRC:
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.ABHP
Overall Length:
3.200 inches
MRC:
The distance measured in a straight line from the bottom to the top of an item.ABKW
Overall Height:
1.500 inches
MRC:
An overall measurement taken at right angles to the length of an item,in distinction from thickness.ABMK
Overall Width:
0.910 inches
MRC:
None.ABNB
First Flat Length:
0.310 inches single actuator
MRC:
None.ABNC
Flat Height:
0.093 inches single actuator
MRC:
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.ABWV
Shaft Diameter:
0.125 inches single actuator
MRC:
The linear measurement of the distance from the actuator centerline to the centerline of the nonturn device.AEFP
Nonturn Device Radius:
0.250 inches at 6: 00 o'clock
MRC:
The number of individual sections included in the item.AFBH
Individual Section Quantity:
6
MRC:
Indicates the type of device used to prevent physical movement of the item on its mounting surface.AFDC
Nonturn Device Type:
Pin at 6: 00 o'clock
MRC:
The general configuration of the contacts of a switch that describes its basic switching structure.AJZE
Switch Contact Basic Design:
Pile-up
MRC:
The means of attaching the item.AXGY
Mounting Method:
Threaded bushing single mounting facility
MRC:
Those features,not otherwise specified,which may be required for proper functioning of the item.CBBL
Features Provided:
Cam actuated
MRC:
The basic contact forms,in the order of assemblage,that collectively describe the switching structure of a pile-up contact group.CQDK
Pile-up Contact Form Arrangement:
1c each switch each section in-line
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.250 inches single mounting facility
MRC:
The voltage for which the contacts are rated,expressed in volts.CQMK
Contact Voltage Rating In Volts:
28.0 dc at altitude
MRC:
The voltage for which the contacts are rated,expressed in volts.CQMK
Contact Voltage Rating In Volts:
28.0 dc at sea level
MRC:
The number of positions to which the switch actuator may be indexed.CRJH
Switch Actuator Indexing Position Quantity:
8 single actuator
MRC:
Indicates the type of shaft included on the item.CRSJ
Shaft Type:
Round, flatted single actuator
MRC:
Indicates the type of terminal for providing electrical connection to the item.CSCF
Terminal Type:
Solder stud
MRC:
The increments of angular rotation that the switch actuator moves between adjacent index positions.CSLC
Switch Actuator Positioning Increment:
45.0 degrees single actuator
MRC:
The amount of current that the contacts are rated to make or break with a specified load.CTHF
Contact Load Current Rating:
5.0 amperes resistive load dc at altitude and 2.5 amperes inductive load dc at altitude and 2.4 amperes lamp load dc at altitude and 4.0 amperes motor load dc at altitude
MRC:
The amount of current that the contacts are rated to make or break with a specified load.CTHF
Contact Load Current Rating:
5.0 amperes resistive load dc at sea level and 3.0 amperes inductive load dc at sea level and 2.4 amperes lamp load dc at sea level and 4.0 amperes motor load dc at sea level
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
In-line, cam actuated
MRC:
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.THSD
Thread Series Designator:
Unf single mounting facility

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