Product Details | TUBE COUPLING NUT

4730-01-578-1806 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.

Part Alternates: AS219218J, AS21921-8J, 4730-01-578-1806, 01-578-1806, 4730015781806, 015781806

Pipe, Tubing, Hose, and Fittings | Hose, Pipe, Tube, Lubrication, and Railing Fittings

Supply Group (FSG) NSN Assign. NIIN
47 29 SEP 2009 01-578-1806

Demand History | NSN 4730-01-578-1806

Part Number Request Date QTY Origin
AS219218J 2015-09-244 8 United States
4730-01-578-1806 2014-06-155 340 IT
AS219218J 2014-06-154 340 US
AS219218J 2014-06-154 340 US

Cross Reference | NSN 4730-01-578-1806

Part Number Cage Code Manufacturer
AS21921-8J 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC

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Technical Data | NSN 4730-01-578-1806

Characteristic Specifications
THREAD DIRECTION RIGHT-HAND
NOMINAL THREAD SIZE 0.750 INCHES
NUT HEIGHT 0.850 INCHES MINIMUM AND 0.870 INCHES MAXIMUM
NOMINAL TUBE OUTSIDE DIAMETER 0.500 INCHES
SEAT ANGLE 45.00 DEGREES NOMINAL
THREAD QUANTITY PER INCH 16
THREAD SERIES UNF
NUT STYLE TUBE COUPLING
WIDTH ACROSS FLATS 0.875 INCHES NOMINAL
MATERIAL STEEL COMP 304 OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
LENGTH TO SHOULDER 0.599 INCHES MINIMUM AND 0.619 INCHES MAXIMUM
THREAD CLASS 3B
SMALLEST INSIDE DIAMETER 0.552 INCHES MINIMUM AND 0.557 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 4730-01-578-1806

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information