4177-20H

417720H Tube Coupling Inverted Nut

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Datasheet. 4177-20H specification

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

3b

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

Fabrication Method
The process used in manufacturing the item.

any acceptable

Casehardening Indicator
Indicates whether or not a ferrous alloy object has been subjected to a process whereby the outer portion is made substantially harder than the inner portion or core.

not casehardened

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

0.750in. ⁓3/4"

Thread Size
Designates the thread diameter and number of threads per specific measurement scale.

1-5/8-12

Tube Outside Diameter For Which Designed
The length of a straight line which passes through the center of the tube for which designed,and terminates at the outside circumference.

1.250in.

Seat Angle In Deg
The angle of the end surface upon which the mated surface seats,expressed in degrees.

33.0

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

un

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

1.750in. ⁓1-3/4"

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.

1.260in.

Material
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.

aluminum alloy

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

aluminum alloy

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.

anodize

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

inverted nut, tube, flare

Surface Treatment
Consists of plating,dip,and/or coating that cannot be wiped off.plating and/or coating is any chemical and/or metallic additive,electrochemical,or mild mechanical process which protects a surface.

anodized

Answers.

What quantity is this sold in?

1EA

What is the style?

Inverted nut, tube, flare

What material is the tube coupling inverted nut made of ?

Aluminum alloy

What is the thread direction?

Right-hand

What is the thread class?

3b

What is the NSN for 4177-20H?

4730-00-142-1581

What's the federal classification of 4177-20H?

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 4730-00-142-1581 INVERTED NUT,TUBE COUPLING

inverted nut, tube, flare anodize surface treated 0.750" overall length right-hand 3b thread class

NIIN
001421581
NIIN Date
01/01/63
Schedule B
 
Name Code
03857
FIIG
T385-B
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$3.78 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. NAS591-20H Cage 80205
2. NAS591-20H Cage 30974
3. NAS597 Cage 80205

Major End Users Countries and entities

  • - Department of The Navy 

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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
Supplies and equipment for aircraft and aerial targets, including aircraft and maintenance parts, aircraft accessories, aircraft 
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 inverted nuts with similar characteristics

Nothing similar to this part number was found in our inventory

4177-20H / Inverted nut,tube couplingWhat is the formal definition of this item?

An externally threaded fastening device which has an internal or external seat, designed to mate with the seat of an internally threaded tube fitting for the purpose of securing the tube to the fitting to form a leakproof connection.