Product Details | TUBE TO BOSS ELBOW

4730-00-990-2541 A fitting that forms an angle of less that 180 degrees (3.141 radians) from a straight flow. One connecting end has machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or is unthreaded and designed to accommodate a tube. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. It may have side or heel inlet(s). It is designed to connect a tube or tube fitting to a boss or boss fitting on items such as tanks, housings, valve fittings, or the like.

Part Alternates: 2571157, 4730-00-990-2541, 00-990-2541, 4730009902541, 009902541

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

Supply Group (FSG) NSN Assign. NIIN
47 14 NOV 1966 00-990-2541

Demand History | NSN 4730-00-990-2541

Part Number Request Date QTY Origin
4730-00-990-2541 2024-07-09 492 DIBBS
4730-00-990-2541 2024-06-27 492 DIBBS
4730-00-990-2541 2024-05-13 565 DIBBS
4730-00-990-2541 2024-05-02 565 DIBBS
4730-00-990-2541 2024-01-05 778 DIBBS
4730-00-990-2541 2023-12-18 778 DIBBS
4730-00-990-2541 2023-12-07 778 DIBBS
4730-00-990-2541 2023-11-21 652 DIBBS
4730-00-990-2541 2023-11-07 652 DIBBS
4730-00-990-2541 2023-10-26 652 DIBBS
4730-00-990-2541 2022-05-05 193 DIBBS
4730-00-990-2541 2022-04-19 248 DIBBS
4730-00-990-2541 2022-04-05 248 DIBBS
4730-00-990-2541 2022-03-21 167 DIBBS
4730-00-990-2541 2022-03-08 167 DIBBS
4730-00-990-2541 2022-02-16 31 DIBBS
4730-00-990-2541 2022-02-11 193 DIBBS
4730-00-990-2541 2022-01-31 193 DIBBS
4730-00-990-2541 2022-01-09 123 DIBBS
4730-00-990-2541 2021-12-20 60 DIBBS
4730-00-990-2541 2021-12-08 60 DIBBS
4730-00-990-2541 2021-11-26 90 DIBBS
4730-00-990-2541 2021-11-14 90 DIBBS
4730-00-990-2541 2021-09-20 31 DIBBS
4730-00-990-2541 2021-09-07 31 DIBBS
4730-00-990-2541 2014-11-03 239 DIBBS
2571157 2014-09-24 5 GR
4730-00-990-2541 2014-09-24 5 MANUAL
4730-00-990-2541 2012-11-05 252 DIBBS
4730-00-990-2541 2011-09-20 264 DIBBS
4730-00-990-2541 2009-01-15 32 DIBBS
4730-00-990-2541 2009-01-15 176 DIBBS
4730-00-990-2541 2009-01-15 228 DIBBS

Cross Reference | NSN 4730-00-990-2541

Part Number Cage Code Manufacturer
2571157 10001 NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT

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Technical Data | NSN 4730-00-990-2541

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING OVERALL
SURFACE TREATMENT PASSIVATE INSIDE PASSIVATE OUTSIDE
CONNECTION TYPE THREADED EXTERNAL TUBE 1ST END THREADED EXTERNAL BOSS 2ND END
CONNECTION STYLE B64 FLARED 1ST END B71A EXTERNAL SEAT FOR GASKET SEAL 2ND END
SEAT ANGLE 37.0 DEGREES 1ST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.250 INCHES 1ST END
THREAD SERIES DESIGNATOR UNF 1ST END UNF 2ND END
NOMINAL THREAD SIZE 0.438 INCHES 1ST END 0.438 INCHES 2ND END
THREAD CLASS 2A 1ST END 2A 2ND END
LEG LENGTH 0.859 INCHES NOMINAL 1ST END 1.016 INCHES NOMINAL 2ND END
FLOW ANGLE 90.0 DEGREES
FURNISHED ITEMS AND QUANTITY 1 LOCKNUT AND 1 FLAT WASHER AND 1 TUBE COUPLING NUT
MANUFACTURERS CODE 10001
DESIGN CONTROL REFERENCE 2571157

Restrictions/Controls & Freight Information | NSN 4730-00-990-2541

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 052190 PIPE,TUBING,OR PIPE OR TUBING FITTI
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 576 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
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 4730-00-990-2541

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