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Datasheet. N20520A specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3b
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
0.406in. ⁓13/32"
The national stock number or the identification information of the end equipment for which the item is a part.
used on airframe
Indicates the type and number of holes provided.
8 drilled
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
un
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
16
A designation that is used for the purpose of general identification of the thread.
2.750in. ⁓2-3/4"
The nominal length of a straight line which passes through the center of a tube,and terminates at the outside circumference.
2.000in.
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.
dyed blue
The chemical compound or mechanical mixture properties of which the item is fabricated.
aluminum alloy 2024
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.
anodize
Answers.
1EA
Aluminum alloy 2024
16
Right-hand
3b
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 4730-01-213-4182 LOCKNUT,TUBE FITTING
Used on airframe. anodize surface treated dyed blue 16 thread quantity per inch right-hand 3b thread class
- NIIN
- 012134182
- NIIN Date
- 07/26/85
- Schedule B
- Name Code
- 17645
- FIIG
- A021A0
- Item Weight
- 0.100lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $484.98 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
Major End Users Countries and entities
- - Department of The Navy
- - U.s. Coast Guard
- - Brazil
- - Spain
- - Singapore
- - Australia
- - Denmark
- - Greece
- - Turkey
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- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- 70.0
- 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)
- 013540 ALUM NUTS
- UFC (universal freight code)
- 05680
Similar by Design Other locknuts with similar characteristics
Nothing similar to this part number was found in our inventory
N20520A / Locknut,tube fittingWhat is the formal definition of this item?
An item with internal machine threads designed to fit the external machine threads of a tube fitting. it has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. the item, when installed, provides a method of locking and sealing the connection. see also locknut, pipe; nut (1), tube coupling and nut (1), plain, hexagon.
