Packing Nut

420-125PC4 1-2

420-125PC4 1-2
(NSN) National Stock Number
4730-00-399-2904
Federal Supply Classification
4730 Hose, Pipe, Tube, Lubrication and Railing Fittings
Item Name Code
18028
Schedule B Code
-
Summary

2a thread class, right-hand thread direction, 0.218 inches nominal thread length, not casehardened casehardening indicator, 0.484 inches nominal overall length, 1/2-20 thread size

DAC HCC DMIL RNCC
5 - - 3
RNVC SADC MSDS RNAAC
2 - - AX
Identification

An item having internal and/or external machine thread(s) (threads other than pipe or hose series), specifically designed to retain, by means or groove(s), shoulder(s), and the like, packing and/or a packing gland within a stuffing box. See also bushing, machine thread; inverted nut, tube coupling; and nut, tube coupling. Excludes:packing nut, stuffing tube; and use with electrical cable, and locknut, pipe.

INC FIIG Concept Condition
18028 T385-E - 2
Specifications
Thread Class
2a
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.
Thread Length
0.218 inches nominal
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
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
0.484 inches nominal
Details The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
Thread Size
1/2-20
Details Designates the thread diameter and number of threads per specific measurement scale.
Screw Thread Series Designator
unf
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
0.625 inches nominal
Details The shortest straight line between flats,perpendicular to the height.
Screw Thread Location
external
Details Indicates the location of the screw thread.
Smallest Inside Diameter
0.250 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
steel
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Surface Treatment
cadmium
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
hexagon, external thread, boss
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
1-2B2P8 60532 5 - 3 2 - AX
400-1180 60532 5 - 3 2 - AX
400-2239PC4 1-2 60532 5 - 3 2 - AX
400-485PC5 1-2 60532 5 - 3 2 - AX
420-108PC5 1-2 60532 5 - 3 2 - AX
420-111PC5 1-2 60532 5 - 3 2 - AX
420-119PC5 1-2 60532 5 - 3 2 - AX
420-121PC5 1-2 60532 5 - 3 2 - AX
420-126PC4 1-2 60532 5 - 3 2 - AX
420-127PC5 1-2 60532 5 - 3 2 - AX
420-131PC5 1-2 60532 5 - 3 2 - AX
420-62PC5 1-2 60532 5 - 3 2 - AX
420-67PC5 1-2 60532 5 - 3 2 - AX
420-86PC5 1-2 60532 5 - 3 2 - AX
420-90PC5 1-2 60532 5 - 3 2 - AX
420-96PC5 1-2 60532 5 - 3 2 - AX
D400-2021PC7 1-2 60532 5 - 3 2 - AX
N400-2130PC5 1-2 60532 5 - 3 2 - AX
N400-2136PC5 1-2 60532 5 - 3 2 - AX
N400-2179PC5 1-2 60532 5 - 3 2 - AX
N400-2379PC8 1-2 60532 5 - 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
TRANE U.S. INC. DIV TRANE HEADQUARTERS
CAGE: 60532
WHITE BEAR LAKE , MN , 55110-3325
UNITED STATES
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FAQs
Frequently asked questions for NSN 4730-00-399-2904
What is the NIIN of the NSN 4730-00-399-2904?
The National Item Identification Number (NIIN) of the NSN 4730-00-399-2904 is 00-399-2904
When the NSN 4730-00-399-2904 was assigned to the Federal Catalog?
It was assigned 62 years ago, on Tue, Jan 1, 1963
Does the NSN 4730-00-399-2904 contain any precious metals?
Type/content is unknown
Does the NSN 4730-00-399-2904 contain any hazardous material?
No data in HMIRS

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