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Datasheet. 56-B-1 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.
0.250in. single mounting facility ⁓1/4"
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
1.900in. ⁓1-29/32"
0.540in. single actuator
0.218in. single actuator
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.
0.250in. single actuator
A measurement of the longest dimension of the shaft,in distinction from width.
0.700in. single actuator
A measurement of the longest straight line across a circular cross-sectional plane.
0.688in. ⁓45/64"
The number of individual sections included in the item.
1
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.
2 single section rear
The number of positions to which the item may be actuated to energize electrical circuits.
4 single 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.
0.375in. single mounting facility ⁓3/8"
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
The position of the actuator,with relation to the extremity of rotation,that is momentary (spring loaded).
clockwise single actuator
The number of positions to which the switch actuator may be indexed.
4 single actuator
Indicates the type of shaft included on the item.
round, flatted single actuator
Indicates the type of terminal for providing electrical connection to the item.
pin
An indication of the switching action by the contacts of the item.
makes before breaks single section rear
The increments of angular rotation that the switch actuator moves between adjacent index positions.
45.0 degrees single actuator
Indicates the type of device included in the switch to limit the angular rotation of its actuator.
fixed stop single actuator
The amount of current that the contacts are rated to make or break with a specified load.
125.0 milliamperes resistive load ac at sea level
The amount of current that the contacts are rated to make or break with a specified load.
125.0 milliamperes resistive load dc at sea level and 115.0 milliamperes inductive load dc at sea level
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
pos 1 is momentary, spring return to pos 2; position 4 is isolated, pull shaft .06 to enter only
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
snap or line
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.
1EA
Unef single mounting facility
Snap or line
0.250 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 5930-01-187-6231 SWITCH,ROTARY
unef single mounting facility thread series snap or line pos 1 is momentary, spring return to pos 2; position 4 is isolated, pull shaft .06 to enter only 1.900" overall length 0.250" single mounting facility thread length 2a single mounting facility thread class
- NIIN
- 011876231
- NIIN Date
- 08/23/84
- Schedule B
- 8536509020
- Name Code
- 02134
- FIIG
- A052B0
- Item Weight
- 0.100lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $293.70 EA
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- No precious metals
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | 4042852-0701 | Cage 06845 |
| 2. | 2-2581 | Cage 91812 |
Major End Users Countries and entities
- - Department of The Navy
- - Department of The Air Force
- - U.s. Coast Guard
- - Poland
- - Spain
- - Canada
- - France
- - Republic of Korea
- - Greece
- - Turkey
Availability for 56-B-1 A member of our team will provide you with a price and availability quote
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
56-B-1 / 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).
