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Datasheet. B81-6-397 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a 1st end
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a 2nd end
Refers to the location of the ends whether on the same centerline (concentric) or on different centerlines (eccentric).
concentric
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.
flared (tube) 2nd end
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.
inverted flare (tube) 1st end
Indicates the type of connection/s/.
threaded external tube 1st end
Indicates the type of connection/s/.
threaded external tube 2nd end
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
18 1st end
A designation that is used for the purpose of general identification of the thread.
0.438in. 2nd end ⁓2-1/64"
A designation that is used for the purpose of general identification of the thread.
0.500in. 1st end ⁓1/64"
The angle of the end surface upon which the mated surface seats.
37.5 degrees 1st end
The angle of the end surface upon which the mated surface seats.
37.0 degrees 2nd end
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.
0.250in. 2nd end
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.
0.312in. 1st end
The nominal dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
1.550in.
The chemical compound or mechanical mixture properties of which the item is fabricated.
copper alloy 360
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
QQ-B-626, comp 22 fed spec single material response
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 2nd end
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
uns 1st end
Answers.
1EA
Uns 1st end
Unf 2nd end
Copper alloy 360
18 1st end
3a 2nd end
2a 1st end
Schedule B number: 7412200000
nmfc 052185
Copper alloy tube or pipe fittings
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 4730-00-078-8487 REDUCER,TUBE
uns 1st end thread series 18 1st end thread quantity per inch 3a 2nd end thread class
- NIIN
- 000788487
- NIIN Date
- 01/01/63
- Schedule B
- 7412200000
- Name Code
- 08506
- FIIG
- A080B0
- Item Weight
- 0.100lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $414.70 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
Major End Users Countries and entities
- - Department of The Army
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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
- 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)
- 052185 PIPE,TUBING,OR PIPE OR TUBING FIT
- UFC (universal freight code)
- 29950
Similar by Design Other reducers with similar characteristics
Nothing similar to this part number was found in our inventory
B81-6-397 / Reducer,tubeWhat is the formal definition of this item?
A straight tube fitting having a different size connection on each end. it is designed to join two tubes of different sizes. excludes bushing (as modified).
