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Datasheet. M28840/21CF1CBF1 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a and 2a
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
RIGHT-Hand and RIGHT-Hand
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.
straight shape, external coupling w/backshell
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
7.938in. ⁓7-61/64"
A measurement of the longest straight line across a circular cross-sectional plane.
2.093in. ⁓2-3/32"
The length of a straight line which passes through the center of the cable entrance,and terminates at the circumference.
0.812in. and 1.188in.
Indicates the type of threaded device included on the item.
back shell and coupling facility
The number of mating ends provided with the item which are designed to accommodate another connector.
1
The style designation indicating the configuration that most nearly corresponds to the arrangement of the contact position/s/.
23-64 single mating end
An indication of whether or not the contact(s) is removable.
removable single mating end single contact grouping
The means used to prevent mismating or cross plugging of contacts.
keyway or multiple keyway
The amount of clockwise displacement of the indexing radius of the insert from normal position,expressed in degrees.
0.0 and 67.0 and 164.0 and 218.0 and 280.0
Indicates the type of shell included on the item.
split
The means used to secure a connector to its mating counterpart.
externally threaded shell
The means by which the connector cable is relieved of stress and strain.
cable clamp
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
18 and 10
A designation that is used for the purpose of general identification of the thread.
1.438in. and 1.500in. ⁓1-1/2"
Indicates the location of the terminal/s/ on the item.
back single mating end single contact grouping
Indicates the type of terminal for providing electrical connection to the item.
crimp single mating end single contact grouping
The chemical compound or mechanical mixture properties of which the shell is fabricated.
aluminum
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the shell surface/s/ and cannot be wiped off.
cadmium
The number of contacts included with the item which provides electrical connection.
64 single mating end single contact grouping
Indicates the type of contact(s) included with the item.
round pin single mating end single contact grouping
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.
contacts are per M39029/83-508
A characteristic of light that can be specified in terms of luminance,dominant wavelength,and purity.
olive drab
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 specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.
81349-MIL-DTL-28840 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.) .
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 and double stub
The document designator of the specification or standard which established the item of supply.
81349-MIL-DTL-28840/21 government specification
Answers.
1EA
Unef and double stub
18 and 10
Right-hand and right-hand
2a and 2a
Schedule B number: 8536695050
nmfc 061680
Electrical plugs & sockets, for a voltage not exceeding 1,000 v
FSC 5935 ⁓ Connectors, electrical
Excluding interconnectors, fiber optic
NSN 5935-01-618-3877 CONNECTOR,PLUG,ELECTRICAL
unef thread series contacts are per M39029/83-508 18 thread quantity per inch 7.938" overall length right-hand 2a thread class
- NIIN
- 016183877
- NIIN Date
- 04/23/13
- Schedule B
- 8536695050
- Name Code
- 01938
- FIIG
- A039B0
- QUP
- 1
- Historical Price
- $410.00 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
| 1. | MIL-DTL-28840/21 | Cage 81349 |
Major End Users Countries and entities
- - Department of The Navy
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- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- Rating variable
- 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)
- Electrical appliances, small
- NMFC (national motor freight code)
- 061680 ELEC WIRING PLUGS ETC
- UFC (universal freight code)
- 34570
Similar by Design Other connectors with similar characteristics
Nothing similar to this part number was found in our inventory
M28840/21CF1CBF1 / Connector,plug,electricalWhat is the formal definition of this item?
An electrical fitting with electrical contacts, constructed to be affixed to the end of a cable, conduit, coaxial line, cord or wiring for convenience in joining with other electrical connector(s) or printed wiring board and is not designed to be mounted on a bulkhead, chasses, panel, printed wiring board, or the like. excludes jack, telephone; jack, tip; plug, telephone; plug tip; insert, electrical connector; connector body (as modified); and socket, plug-in, electronic components. see also lead assembly, electrical; wiring harness (as modified); and cable assembly (as modified). for items without inserts, see shell, electrical connector.
