Tube Coupling Inverted Nut
NAS597
(NSN) National Stock Number
4730-00-142-1581
Federal Supply Classification
4730 Hose, Pipe, Tube, Lubrication and Railing Fittings
Item Name Code
03857
Schedule B Code
-
Summary
3b thread class, right-hand thread direction, not casehardened casehardening indicator, 0.750 inches nominal overall length, 1-5/8-12 thread size, 1.250 inches nominal tube outside diameter for which designed
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| E | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 1 | - | - | ZZ |
Identification
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.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 03857 | T385-B | - | 1 |
Specifications
Thread Class
3b
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Direction
right-hand
Details
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.Casehardening Indicator
not casehardened
Details
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.Overall Length
0.750 inches nominal
Details
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.Thread Size
1-5/8-12
Details
Designates the thread diameter and number of threads per specific measurement scale.Tube Outside Diameter For Which Designed
1.250 inches nominal
Details
The length of a straight line which passes through the center of the tube for which designed,and terminates at the outside circumference.Seat Angle In Deg
33.0
Details
The angle of the end surface upon which the mated surface seats,expressed in degrees.Screw Thread Series Designator
un
Details
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.Width Across Flats
1.750 inches nominal
Details
The shortest straight line between flats,perpendicular to the height.Smallest Inside Diameter
1.260 inches nominal
Details
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.Material
aluminum alloy
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Surface Treatment
anodize
Details
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.Style Designator
inverted nut, tube, flare
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Master-Cross Reference List
| Part | CAGE | DAC | HCC | RNCC | RNVC | MSDS | RNAAC |
|---|---|---|---|---|---|---|---|
| NAS591-20H | 30974 | E | - | 5 | 1 | - | AX |
| 4177-20H | 77969 | E | - | C | 1 | - | ZZ |
| NAS591-20H | 80205 | E | - | 3 | 2 | - | AX |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | U | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 48950 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 573 | Z | 9 |
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Manufacturer
NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
CAGE: 80205
ARLINGTON
, VA
, 22209
UNITED STATES
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FAQs
Frequently asked questions for NSN 4730-00-142-1581
What is the NIIN of the NSN 4730-00-142-1581?
The National Item Identification Number (NIIN) of the NSN 4730-00-142-1581 is 00-142-1581
When the NSN 4730-00-142-1581 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 4730-00-142-1581 contain any precious metals?
Type/content is unknown
Does the NSN 4730-00-142-1581 contain any hazardous material?
No data in HMIRS
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