B2808-74

B280874 Pipe Reducer

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Quality Commitment

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Datasheet. B2808-74 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

2a 1st end

Reducer Type
Refers to the location of the ends whether on the same centerline (concentric) or on different centerlines (eccentric).

concentric

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

aircraft C-5 galaxy; crane, whl, mtd

Connection Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.

gasket seal (pipe) 1st end

Connection Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.

plain (pipe) 2nd end

Connection Type
Indicates the type of connection/s/.

threaded external pipe 2nd end

Connection Type
Indicates the type of connection/s/.

threaded internal pipe 1st end

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.250in. 1st end and 0.875in. 1st end ⁓1/64"

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.500in. 2nd end ⁓2-1/64"

Criticality Code Justification
The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.

feat

Nominal Overall Length
The nominal dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

1.688in.

Special Features
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.

bulkhead thd 0.875IN-UNEF-2A, first end; weapon system essential

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel

Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

zinc inside

Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

zinc outside

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

npt 2nd end

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

npt 1st end and unef 1st end

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Npt 1st end and unef 1st end

What class is the thread series?

Npt 2nd end

What material is the pipe reducer made of ?

Steel

What is the thread class?

2a 1st end

What is the NSN for B2808-74?

4730-00-753-6271

How is this classified for shipping?

Schedule B number: 7307992000
nmfc 052190
Other fittings nesoi of iron or nonalloy steel

What's the federal classification of B2808-74?

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 4730-00-753-6271 REDUCER,PIPE

Used on aircraft c-5 galaxy; crane,whl,mtd. npt 1st end thread series zinc outside surface treated bulkhead thd 0.875in-unef-2a, first end; weapon system essential 2a 1st end thread class

NIIN
007536271
NIIN Date
01/01/62
Schedule B
7307992000 
Name Code
08505
FIIG
A080B0
Item Weight
0.200lbs
Item Dimensions
40 X 40 X 10
QUP
Historical Price
$21.18 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. 194088H1 Cage 92679
2. 7536271 Cage 19207
3. 9151384 Cage 18876
4. 30719 Cage 13841
5. AC2622 Cage 16662
6. AC2622 Cage 63477
7. 11311 Cage 06721
8. AC2297 Cage 76280
9. 10311 Cage 98343
10. 11311 Cage 98343
11. AC2297 Cage 16662
12. AC2297A Cage 16662
13. AC2297 Cage 63477
14. AC2297A Cage 63477
15. 194088H1 Cage 92679
16. 7536271 Cage 19207
17. 9151384 Cage 18876
18. 30719 Cage 13841
19. AC2297 Cage 76280
20. 11311 Cage 06721
21. AC2297 Cage 63477
22. AC2297A Cage 63477
23. 10311 Cage 98343
24. 11311 Cage 98343
25. AC2622 Cage 16662
26. AC2297 Cage 16662
27. AC2297A Cage 16662
28. AC2622 Cage 63477
29. 194088H1 Cage 92679
30. 7536271 Cage 19207
31. 9151384 Cage 18876
32. 30719 Cage 13841
33. AC2297 Cage 76280
34. 11311 Cage 06721
35. AC2297 Cage 63477
36. AC2297A Cage 63477
37. 10311 Cage 98343
38. 11311 Cage 98343
39. AC2622 Cage 16662
40. AC2297A Cage 16662
41. AC2297 Cage 16662
42. AC2622 Cage 63477

Major End Users Countries and entities

  • - Department of The Army 
  • - Department of The Air Force 
  • - Germany 
  • - Republic of Korea 
  • - Turkey 

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Shipping Information

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)
052190 PIPE,TUBING,OR PIPE OR TUBING FITTI 
UFC (universal freight code)
30000 

Similar by Design Other reducers with similar characteristics

Nothing similar to this part number was found in our inventory

B2808-74 / Reducer,pipeWhat is the formal definition of this item?

A straight pipe fitting having a different size connection on each end. it is designed to join two pipes of different sizes or two pipe fittings of different sizes. excludes bushing (as modified).