N-4-1-20

N4120 Union Nut

Home » Catalog » Fittings (p. 1907) » Union Nuts (p. 12) » Part Number N-4-1-20

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Datasheet. N-4-1-20 specification

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

Thread Direction
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

Shoulder Width

0.240in.

Nut Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.

hexagon

Nut Height

1.437in. ⁓1-7/16"

Width Across Flats
The shortest straight line between flats,perpendicular to the height.

1.625in. ⁓1-5/8"

Smallest Inside Diameter
The smallest length of a straight line which passes through the center of the two surfaces of a circular item,and terminates at the inside circumference.

1.070in.

Thread Series
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.

unf

Shoulder Step Width

0.210in.

Shoulder Seat Diameter

1.360in.

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

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

1.500in. ⁓1-1/2"

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

steel

Answers.

What quantity is this sold in?

1EA

What material is the union nut made of ?

Steel

What is the thread quantity per inch?

What is the thread direction?

Right-hand

What is the thread class?

What is the NSN for N-4-1-20?

4730-01-061-0806

How is this classified for shipping?

Schedule B number: 7318160000
nmfc 093486
Nuts of iron or steel

What's the federal classification of N-4-1-20?

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 4730-01-061-0806 NUT,UNION

12 thread quantity per inch right-hand 2b thread class

NIIN: 010610806
NIIN Date: 06/11/78
Schedule B: 7318160000
Name Code: 19964
FIIG: A021A0
Item Weight: 0.300lbs
Item Dimensions
QUP: 1
Historical Price: $139.33 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.	N-4-1-80	Cage 31923
2.	N4-1-20	Cage 31923
3.	SMS-N4-1-20	Cage 57140
4.	15353	Cage 31923
5.	D42042PC14	Cage 31923

Major End Users Countries and entities

- National Aeronautics And Space Administration
- Department of The Navy
- Spain
- 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): Bolts or nuts (iron or steel),(less than 35 feet)
NMFC (national motor freight code): 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
UFC (universal freight code): 48950

Similar by Design Other nuts with similar characteristics

Nothing similar to this part number was found in our inventory

N-4-1-20 / Nut,unionWhat is the formal definition of this item?

An internally threaded nut which has an internal seat or shoulder designed to engage the nut retaining flange of a union tailpiece. the threaded portion is used to engage the thread piece of a union, union elbor or the like. excludes nut (1), tube coupling.