Product Details | TUBE COUPLING NUT

4730-00-278-5463 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: 811BT20, 4730-00-278-5463, 00-278-5463, 4730002785463, 002785463

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

Supply Group (FSG) NSN Assign. NIIN
47 01 JAN 1963 00-278-5463

Drawings & Photos | NSN 4730-00-278-5463


Cross Reference | NSN 4730-00-278-5463

Part Number Cage Code Manufacturer
811BT20 88041 AIR CORPS STANDARDS UNDER CUSTODIANISHIP OF THE

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Technical Data | NSN 4730-00-278-5463

Characteristic Specifications
THREAD SERIES UNS
NOMINAL THREAD SIZE 1.625 INCHES
THREAD QUANTITY PER INCH 14
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL ALUMINUM ALLOY OVERALL
SURFACE TREATMENT ANODIZE OVERALL
NUT STYLE A351 TUBE COUPLING
NUT HEIGHT 1.078 INCHES NOMINAL
WIDTH ACROSS FLATS 1.312 INCHES NOMINAL
LENGTH TO SHOULDER 0.875 INCHES NOMINAL
SMALLEST INSIDE DIAMETER 1.375 INCHES NOMINAL
FABRICATION METHOD ANY ACCEPTABLE
NOMINAL TUBE OUTSIDE DIAMETER 1.250 INCHES
MANUFACTURERS CODE 88041
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE 811BT20

Restrictions/Controls & Freight Information | NSN 4730-00-278-5463

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:UPrecious metal type is unknown
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
NMF Description 013540 ALUM NUTS
Less than car load rating Q 70
Less than truck load rating Q 70.0
Water commodity Code 713 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable