4730-01-578-1785

Tube Coupling Nut email this page

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Reference images of this national stock number
Reference of NSN 4730-01-578-1785 Reference of NSN 4730-01-578-1785 Reference of NSN 4730-01-578-1785 Reference of NSN 4730-01-578-1785 Reference of NSN 4730-01-578-1785 Reference of NSN 4730-01-578-1785

Model or part number: AS21921-4J

Stock Availability  condition code chart

This product is available in the following quantities and conditions.

  • NE: 1860
  • NS: 2

Total: 1862 Note: Availability of this item was last updated 02/19/2024, and may have changed since then. Request a quote for up to date pricing and availability.

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Description

Flare Tube Fitting Nut NSN 4730-01-578-1785.

pdf NSN 4730-01-578-1785 Datasheet

MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
3b
MRC:
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.AAJF
Thread Direction:
Right-hand
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.ACTA
Nut Style:
Tube coupling
MRC:
None.ADEA
Nut Height:
Between 0.710 inches and 0.730 inches
MRC:
The shortest straight line between flats,perpendicular to the height.ASDB
Width Across Flats:
0.562 inches
MRC:
None.BRQL
Length To Shoulder:
Between 0.537 inches and 0.557 inches
MRC:
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.BSPX
Smallest Inside Diameter:
Between 0.300 inches and 0.305 inches
MRC:
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.BZRR
Thread Series:
Unjf
MRC:
The number of threads on the item per linear inch measured on a line parallel to the thread axis.CMLP
Thready Qty Per Inch (tpi):
20
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.438 inches
MRC:
The nominal length of a straight line which passes through the center of a tube,and terminates at the outside circumference.CQRJ
Tube Outside Diameter:
0.250 inches
MRC:
None.CRRB
Seat Angle:
45.00 degrees
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel comp 304
MRC:
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.SFTT
Surface Treatment:
Passivate
MRC:
--
NIIN:
015781785
MRC:
--
NATO Stock Number:
4730-01-578-1785
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
No
FIIG:
--
FIIG:
A021A0
MRC:
--
INC:
03859
MRC:
--
IMM:
AX
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Delivery of IN-STOCK orders ship same-day when order is placed before 2:00 PM EST.

Delivery dates for NON-STOCK items are estimates based on current backlog and are subject to confirmation at the time of order.

Formal Definition

Government issue definition of NSN 4730-01-578-1785

An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. Excludes nut (1), tube coupling, reducing; and nut (1), union.

Manufacturers

This NSN is registered to the following cage codes.
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