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Datasheet. 251U3D6 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a first fluid end connection
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
3.543in. ⁓3-35/64"
A measurement of the longest dimension of the second leg, in distinction from width.
0.548in.
The means by which mechanical action completely engages or disengages a mating quick disconnect part.
spring PUSH-Lock all ends
The maximum temperature at which the item is rated to operate for an extended period of time.
149.0 deg celsius single response
The national stock number or the identification information of the end equipment for which the item is a part.
H-53 helicopter
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.
flared first fluid end connection
A measurement of the longest dimension of the leg,in distinction from width.
1.130in.
Indicates the type of connection/s/.
threaded external tube first fluid end connection
Indicates whether or not the second end is identical to the first end.
identical
The maximum pressure at which an item is rated to operate for each type of service with which an item may be used.
200.0 pounds per square inch any acceptable
The maximum pressure at which the item is rated for operation.
200.0 pounds per square inch single response
A designation that is used for the purpose of general identification of the thread.
0.562in. first fluid end connection ⁓9/16"
The angle of the end surface upon which the mated surface seats.
37.0 degrees
A rating which expresses the degree of heat or cold as applied to the operation,or limitation of operation,for each type of service with which an item may be used.
149.0 deg celsius any acceptable
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.
0.375in. first fluid end connection
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.
w/provision for locknut
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel corrosion resisting
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
coupling assembly
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.
78286-65307-1 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unf first fluid end connection
Answers.
1EA
Unf first fluid end connection
Coupling assembly
Steel corrosion resisting
3a first fluid end connection
Schedule B number: 7307290000
nmfc 051400
Stainless steel tube or pipe fittings nesoi
FSC 4730 ⁓ Hose, pipe, tube, lubrication, and railing fittings
Excluding air conditioning-heating fittings (fsc 4520); bituminized fiber and concrete fittings (fsc 5630); conduit boxes and fittings (fsc 5975); downspout fittings (fsc 5670); medical and surgical fittings (fsc 6515); laboratory fittings (fsc 6640); post caps and rail ends (fsc 5660); machine thread bushings and plugs (fsc 5365).
NSN 4730-00-114-2456 COUPLING ASSEMBLY,QUICK DISCONNE
Used on h-53 helicopter. unf first fluid end connection thread series coupling assembly w/provision for locknut 3.543" overall length 3a first fluid end connection thread class
- NIIN
- 001142456
- NIIN Date
- 09/25/68
- Schedule B
- 7307290000
- Name Code
- 20671
- FIIG
- A531S0
- Item Weight
- 5,200.000lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $5,347.80 EA
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Metal content unknown
- 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. | 65307-12004-105 | Cage 78286 |
| 2. | 65307-12004-105 | Cage D1081 |
Major End Users Countries and entities
- - Department of The Navy
- - Department of The Air Force
- - Brazil
- - Germany
Availability for 251U3D6 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
- Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
- Commodity (for shipments via water)
- Metal and metal products, nos, (less than 35 feet)
- NMFC (national motor freight code)
- 051400 PIPE FITTINGS ALUMINUM
- UFC (universal freight code)
- 29700
Similar by Design Other coupling assemblys with similar characteristics
Nothing similar to this part number was found in our inventory
251U3D6 / Coupling assembly,quick disconneWhat is the formal definition of this item?
A multipiece fluid line fitting consisting of two coupling half, quick disconnect fittings.
