2021-4-45

2021445 Straight Pipe To Tube Adapter
Home » Catalog » Fittings (p. 2128) » Straight Pipe To Tube Adapters (p. 72) » Part Number 2021-4-45

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Quality Commitment

Serving our customers with quality and safety first.

  •   AS9120 Certified
  •   Audited supply chain
  •   ITAR Registered
  •   DDTC Registered
  •   HAZMAT Certified
  •   Customer service objectives
  •   Every product 100% inspected
AS9120 Certified by SAI Global

Datasheet. 2021-4-45 specification

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

2a 1st end

Maximum Operating Temp
The maximum temperature at which the item is rated to operate for an extended period of time.

250.0 deg fahrenheit single response

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

flared (tube) 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 external tube 1st end

Maximum Operating Pressure
The maximum pressure at which the item is rated for operation.

3000.0 pounds per square inch single response

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

0.250in. 2nd end ⁓2-1/64"

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

0.438in. 1st end ⁓1/64"

Seat Angle
The angle of the end surface upon which the mated surface seats.

37.0 degrees 1st end

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 Outside Diameter Tube Accommodated
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.

0.250in. 1st end

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

1.422in.

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.

weapon system essential

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

steel comp 316

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

66 fed std single material response

Media For Which Designed
The type of media for which the item is designed.

hydraulic fluid single response

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.

passivate

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

QQ-P-35, type 1 or 2 fed spec single treatment response

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.

nptf 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.

unf 1st end

Furnished Items And Quantity
The name and number of those parts furnished with the item of supply that have not been specified elsewhere.

1 tube coupling nut w/sleeve

Specification/standard Data
The document designator of the specification or standard which established the item of supply.

96906-MS51500 government standard and 81349-MIL-F-18866 government specification and 81343-J514 professional/industrial association standard

Nondefinitive Spec/std Data
The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.

5a figure

Answers.

When was the most recent contract awarded?

On 11/28/2014 under contract SPE7L315M1564 for qty 7,886

What quantity is this sold in?

1EA

What class is the thread series?

Unf 1st end

What class is the thread series?

Nptf 2nd end

What material is the straight pipe to tube adapter made of ?

Steel comp 316

What is the thread class?

2a 1st end

What is the NSN for 2021-4-45?

4730-00-837-7073

How is this classified for shipping?

Schedule B number: 8710000090
nmfc 052190
Parts of armored fighting vehicles,motorized, whether or not fitted with weapons

What's the federal classification of 2021-4-45?

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 4730-00-837-7073 ADAPTER,STRAIGHT,PIPE TO TUBE

unf 1st end thread series passivate surface treated weapon system essential 2a 1st end thread class

NIIN
008377073
NIIN Date
01/01/62
Schedule B
8710000090 
Name Code
03776
FIIG
A080B0
Item Weight
0.100lbs
Item Dimensions
--
QUP
1 
Historical Price
$1.10 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. 2021-4-4 Cage 01276
2. 218-1022 Cage 10988
3. 2-PS-2270 Cage 11976
4. 1001-1012-215A Cage 16603
5. 4-4FTX-S Cage 30870
6. 145-4510932-48 Cage 51563
7. 516-4510941-9 Cage 51563
8. 273-0280-004 Cage 94756
9. 434034 Cage 01014
10. PS-2270 Cage 11976
11. 502-1018 Cage 44940
12. 31671 Cage 81795
13. 4-4FBTXS Cage 30780
14. 4-4FBTXS Cage 45681
15. MS51500A4-4 Cage 46717
16. 5165977 Cage 53711
17. MS51500A4-4 Cage 54214
18. 4-4FBTXS Cage 98441
19. 021-4-4 Cage 00642
20. 39124797 Cage 30760
21. 04-4-FTX-S Cage 63078
22. 0103+4+4 Cage 83123
23. MS51500A4-4 Cage 98661
24. TC15-1569 Cage 03677
25. 517465 Cage 02280
26. MS51500-4-4C Cage 96906
27. MS51500A4-4 Cage 79470
28. J514 Cage 81343
29. 2021-4-4S Cage 01276
30. 19401FX Cage 45152
31. MS51500B4-4S Cage 53711
32. 8U56101-222 Cage 07703
33. 000-8002-371 Cage 94756
34. 9733071 Cage 07482
35. 9733071 Cage 18876
36. 8485618 Cage 18876
37. 8431415 Cage 98752
38. 713617-1 Cage 96214
39. 21017322-102 Cage 81395
40. 4-4-FBTX-SS Cage 30780
41. 9733071 Cage 01276
42. 2021-4-4S Cage 00624
43. 4-4FBTXS Cage 09523
44. 2021-4-4C Cage 01276
45. J816-4-4SS Cage 54214
46. 4-4FTX-SS Cage 30780
47. 2404-04-04 Cage 0S1H5
48. 5224-2404-04-04 Cage 61796
49. 1001978 Cage 1EFH8
50. 4-4FBTX-SS Cage U7709
51. 4-4 070102SA Cage 81343
52. SAE J514 4 070102S Cage 81343
53. SAE J514 4-6 070220B Cage 81343
54. 8HE553 Cage 45152
55. MS51500A4-4S Cage 01276
56. MS51500A4-4S Cage 93188
57. MIL-F-18866 Cage 81349
58. MS51500A4-4S Cage 96906
59. MS51500B4-4S Cage 96906
60. MS51500A4-4 Cage 96906
61. 9733071 Cage 79470
62. MS51500A4-4S Cage 79470
63. 4-4FTXSS 4FNTXSS Cage 98441
64. 4-4FTXSS 4FNTXSS Cage 30757
65. 21C1537-122 Cage 07482
66. 4-4FTXSS 4FNTXSS Cage 30780
67. MS51500A4-4S Cage 30780
68. 4-4FBTXSS Cage 45681
69. 4-4-FBTX-SS Cage 98441
70. MS51500A4-4S Cage 98441
71. 4 070102S Cage 81343
72. 4-6 070220C Cage 81343
73. 4-4 070102SA Cage 98441
74. SAE J514 Cage 81343
75. 4-4070102SA Cage 81343

Major End Users Countries and entities

  • - National Aeronautics And Space Administration 
  • - National Aeronautics And Space Administration 
  • - Department of The Navy 
  • - Department of The Army 
  • - Department of The Air Force 
  • - U.s. Marine Corps 
  • - U.s. Coast Guard 
  • - Austria 
  • - Poland 
  • - Brazil 
  • - Spain 
  • - Israel 
  • - Singapore 
  • - Malaysia 
  • - Australia 
  • - Belgium 
  • - Canada 
  • - New Zealand 
  • - France 
  • - Germany 
  • - Republic of Korea 
  • - United Kingdom 
  • - Netherlands 
  • - Portugal 
  • - Italy 
  • - Denmark 
  • - Norway 
  • - Greece 
  • - Turkey 
  • - Nato Maintenance And Supply Agency 

Major End Items End use applications

  • - Close in weapon system (ciws-phalanx)
  • - Torpedo, mk 48
  • - Missile, tomahawk
  • - Support equipment, b-1 aircraft
  • - Vehicle, aircraft refueler r-14
  • - Stream (std. tensioned replenishment at sea method)
  • - Gun, 5-in./54 cal, mk-45
  • - Shipboard material handling equipment (mhe)
  • - Missile, air intercept, sidewinder (aim-9)
  • - Compressor unit,reciprocating
  • - Laundry unit,trailer mounted
  • - Laundry unit,trailer mounted
  • - Test stand,aircraft generator
  • - Laundry unit,trailer mounted
  • - Generator set,diesel engine
  • - Engine and containe
  • - Compressor unit,reciprocating
  • - Paving machine,bituminous material
  • - Paving machine,bituminous material
  • - Paving machine,bituminous material
  • - Paving machine,bituminous material
  • - Paving machine,bituminous material
  • - Paving machine,bituminous material
  • - Test set subassembly,aircraft components
  • - Vibration and run i
  • - Recovery vehicle,full tracked
  • - Recovery vehicle,full tracked
  • - Adapter kit,test
  • - Adapter kit,test
  • - Heater,fluid,industrial
  • - Adapter kit,test
  • - Tank unit,test,aircraft components
  • - Generator set,diesel engine
  • - Adapter kit,test
  • - Adapter kit,test
  • - Test stand,electric,hydraulic and pneumatic system components
  • - Adapter kit,test
  • - Adapter,test
  • - Adapter,test
  • - Shelter,nonexpandable
  • - Compressor-dehydrator,electronic equipment
  • - Engine with contain
  • - Test stand,hydraulic system components
  • - Test stand,electric and hydraulic system components
  • - Test set,environmental control system,aircraft
  • - Test equipment,guided missile system
  • - Test stand,hydraulic system components
  • - Recharging unit,coolant,guided missile
  • - Combat engineer vehicle,full tracked
  • - Combat engineer vehicle,full tracked
  • - Compressor unit,reciprocating
  • - Chuck and valve ass
  • - Vacuum pump unit,rotary
  • - Crane truck,warehouse
  • - Truck,lift,fork
  • - Truck,fire fighting
  • - Truck,lift,fork
  • - Truck,aircraft cargo loading-unloading
  • - Test station,fuel control system components
  • - Truck,aircraft cargo loading-unloading
  • - Compressor unit,rotary
  • - Truck,aircraft cargo loading-unloading
  • - Filter unit,fluid,pressure
  • - Compressor unit,reciprocating
  • - Muffler,exhaust,eng
  • - Recharging unit,coolant,guided missile
  • - Heater,duct type,portable
  • - Mast group,hydrauli
  • - Truck,fire fighting
  • - Truck,fire fighting
  • - Engine,diesel
  • - Truck,fire fighting
  • - Compressor unit,rotary

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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 adapters with similar characteristics

Nothing similar to this part number was found in our inventory

2021-4-45 / Adapter,straight,pipe to tubeWhat is the formal definition of this item?

An adapter having standard pipe threads on one end or an unthreaded end designed to accommodate a pipe. the other end has machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or is unthreaded and designed to accommodate a tube. it is designed to join a pipe or pipe fitting to a tube or tube fitting in a straight line.