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Datasheet. 21AB12 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a single mounting facility
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.312in. single mounting facility ⁓5/16"
The specific commercial rating which classes the item as to what degree the item will withstand environmental elements and/or hazardous locations.
dustproof
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
2.000in. ⁓2-1/64"
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.
0.125in. single actuator
A measurement of the longest dimension of the shaft,in distinction from width.
0.688in. single actuator
A measurement of the longest straight line across a circular cross-sectional plane.
0.820in. ⁓53/64"
The linear measurement of the distance from the actuator centerline to the centerline of the nonturn device.
0.250in. at 12:00 o'clock
The number of individual sections included in the item.
2
Indicates the type of device used to prevent physical movement of the item on its mounting surface.
pin at 12:00 o'clock
The general configuration of the contacts of a switch that describes its basic switching structure.
NONPILE-Up symmetrical
The number of poles included in the item.
1 each section front
The number of positions to which the item may be actuated to energize electrical circuits.
12 each section rear
The means of attaching the item.
threaded bushing single mounting facility
A designation that is used for the purpose of general identification of the thread.
0.250in. single mounting facility ⁓1/4"
The voltage for which the contacts are rated,expressed in volts.
115.0 ac at sea level
The voltage for which the contacts are rated,expressed in volts.
28.0 dc at sea level
Indicates the number of connections on a rotor segment that are front to rear surface connected.
1 each section
The number of positions to which the switch actuator may be indexed.
12 single actuator
Indicates the type of shaft included on the item.
round single actuator
Indicates the type of terminal for providing electrical connection to the item.
tab, solder lug
An indication of the switching action by the contacts of the item.
breaks before makes each section rear
The increments of angular rotation that the switch actuator moves between adjacent index positions.
30.0 degrees single actuator
The amount of current that the contacts are rated to make or break with a specified load.
250.0 milliamperes resistive load ac at sea level
The amount of current that the contacts are rated to make or break with a specified load.
250.0 milliamperes resistive load dc at sea level and 125.0 milliamperes inductive load dc at sea level
An indication of the precious material and its location in the item.
contact surfaces gold
Identification of the precious material contained in the item.
gold
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
tap, circular, bushing mount
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unef single mounting facility
Answers.
Unef single mounting facility
Tap, circular, bushing mount
0.312 inches single mounting facility
2a single mounting facility
Schedule B number: 8536509020
nmfc 061300
Switches, rotary, rated at not over 5 a, for a voltage not exceeding 1,000 v
FSC 5930 ⁓ Switches
Excluding switchgear.
NSN 5930-01-065-2682 SWITCH,ROTARY
unef single mounting facility thread series tap, circular, bushing mount 2.000" overall length 0.312" single mounting facility thread length 2a single mounting facility thread class
- NIIN
- 010652682
- NIIN Date
- 09/13/78
- Schedule B
- 8536509020
- Name Code
- 02134
- FIIG
- A052B0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $90.03 EA
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Contains gold
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
Major End Users Countries and entities
- - Defense Logistics Agency
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Request a Quote »Shipping Information
- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- 77.5
- LCL (less than a car load rating)
- Unknown
- Special Cargo
- No special type of cargo code applicable
- Air Freight (Minimum cargo door size required)
- Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- Customs Requirement Classification
- Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)
- Commodity (for shipments via water)
- Communications/electronics, other than sigint/ew or comsec repair parts and components
- NMFC (national motor freight code)
- 061300 CIRCUIT BREAKER/SWITCH NOI
- UFC (universal freight code)
- 34410
Similar by Design Other switchs with similar characteristics
Nothing similar to this part number was found in our inventory
21AB12 / Switch,rotaryWhat is the formal definition of this item?
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).
