Product Details | TUBE COUPLING NUT

4730-00-273-6660 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: 346286PC1, 4730-00-273-6660, 00-273-6660, 4730002736660, 002736660

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

Supply Group (FSG) NSN Assign. NIIN
47 01 JAN 1961 00-273-6660

Drawings & Photos | NSN 4730-00-273-6660


Cross Reference | NSN 4730-00-273-6660

Part Number Cage Code Manufacturer
346286PC1 10001 NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT

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Technical Data | NSN 4730-00-273-6660

Characteristic Specifications
THREAD SERIES UN
NOMINAL THREAD SIZE 0.438 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 2B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT ZINC OVERALL
NUT STYLE A352 TUBE COUPLING
NUT HEIGHT 0.688 INCHES NOMINAL
WIDTH ACROSS FLATS 0.625 INCHES NOMINAL
LENGTH TO SHOULDER 0.450 INCHES NOMINAL
SMALLEST INSIDE DIAMETER 0.289 INCHES NOMINAL
SEAT ANGLE 45.00 DEGREES NOMINAL
FABRICATION METHOD ANY ACCEPTABLE
NOMINAL TUBE OUTSIDE DIAMETER 0.250 INCHES

Restrictions/Controls & Freight Information | NSN 4730-00-273-6660

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
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 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating U 50
Less than truck load rating W Rating Variable
Water commodity Code 573 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

Management | NSN 4730-00-273-6660

Category Code Description
Cognizance Codes9CNavy-owned stocks of defense construction material
Naval Inventory Control Point, Mechanicsburg
Source of SupplyS9CDefense Supply Center Columbus
Columbus, OH 43215
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
5
EA : Each