Product Details | TUBE FITTING LOCKNUT

4730-00-833-7656 An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also LOCKNUT, PIPE; NUT (1), TUBE COUPLING and NUT (1), PLAIN, HEXAGON.

Part Alternates: AN6289K20, SAE AS5179 , SAE AS54841 , SAEAS5179, SAEAS54841, 4730-00-833-7656, 00-833-7656, 4730008337656, 008337656, 157618230

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

Supply Group (FSG) NSN Assign. NIIN
47 13 SEP 1967 00-833-7656

Drawings & Photos | NSN 4730-00-833-7656


Demand History | NSN 4730-00-833-7656

Part Number Request Date QTY Origin
4730-00-833-7656 2023-03-16 28 DIBBS
4730-00-833-7656 2022-03-22 11 DIBBS
4730-00-833-7656 2019-11-03 32 DIBBS
4730-00-833-7656 2016-06-13 21 DIBBS
4730-00-833-7656 2016-06-02 21 DIBBS
4730-00-833-7656 2014-12-22 15 DIBBS
4730-00-833-7656 2014-12-05 15 DIBBS
4730-00-833-7656 2013-11-12 5 DIBBS

Cross Reference | NSN 4730-00-833-7656

Part Number Cage Code Manufacturer
157618230 A0199 OTO MELARA SPA
AN6289K20 88044 AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
SAE AS5179 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
SAE AS54841 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC

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Technical Data | NSN 4730-00-833-7656

Characteristic Specifications
THREAD SERIES UN
NOMINAL THREAD SIZE 1.625 INCHES
THREAD QUANTITY PER INCH 12
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL CORROSION RESISTING OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
NUT STYLE A391 TUBE FITTING LOCKNUT
NUT HEIGHT 0.438 INCHES NOMINAL
WIDTH ACROSS FLATS 1.922 INCHES MINIMUM AND 1.954 INCHES MAXIMUM
PACKING RECESS DIAMETER 1.849 INCHES MINIMUM AND 1.859 INCHES MAXIMUM
PACKING RECESS DEPTH 0.049 INCHES MINIMUM AND 0.059 INCHES MAXIMUM
NOMINAL TUBE OUTSIDE DIAMETER 1.250 INCHES
MANUFACTURERS CODE 88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE AN6289K20

Restrictions/Controls & Freight Information | NSN 4730-00-833-7656

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: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
NMF Description 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 573 unknown
Originating Activity Code 86 NASA Kennedy Space Center
Kennedy Space Center, FL 32899
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 4730-00-833-7656

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each