PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-83798/3Elbow,tube to Hose

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-652-4626 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-652-4626 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-652-4626. Primary manufacturer part number: MIL-DTL-83798/3.
Features
  • Elbow,tube to Hose — FSC 4730
  • Nominal Thread Size: 1.625 INCHES FIRST END IN
  • Connection Type: THREADED INTERNAL TUBE FIRST END
  • Furnished Items and Quantity: 1 HOSE COUPLING NUT
  • Thread Series Designator: UNIFIED NATIONAL JOINT (UNJ) FIRST END
  • Specification/standard Data: 81349--83798/3-20 GOVERNMENT SPECIFICATION
  • Material: ALUMINUM ALLOY 5052 AND ALUMINUM ALLOY 6061 OVERALL
  • Surface Treatment: ANODIZE OUTSIDE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy 5052 and Aluminum Alloy 6061 Overall construction
General Description

The Elbow,tube to Hose, cataloged under National Stock Number 4730-00-652-4626, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-652-4626
Primary Part NumberMIL-DTL-83798/3
Item NameElbow,tube to Hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Nominal Thread Size1.625 INCHES FIRST END IN
Connection TypeTHREADED INTERNAL TUBE FIRST END
Furnished Items and Quantity1 HOSE COUPLING NUT
Thread Series DesignatorUNIFIED NATIONAL JOINT (UNJ) FIRST END
Specification/standard Data81349--83798/3-20 GOVERNMENT SPECIFICATION
MaterialALUMINUM ALLOY 5052 AND ALUMINUM ALLOY 6061 OVERALL
Surface TreatmentANODIZE OUTSIDE
Operating Pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Leg Length3.380 INCHES NOMINAL SECOND END IN
Seat Angle37.0 DEGREES FIRST END
Thread Class3B FIRST END
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND END
Leg Length2.387 INCHES MINIMUM AND 2.457 INCHES MAXIMUM FIRST END IN
Connection StyleGRIPPING NIPPLE (NOSE) SECOND END
Flow Angle90.0 DEGREES
Material Document and ClassificationWW-T-700/4 FED SPEC SINGLE MATERIAL RESPONSE OR WW-T-700/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface Treatment Document and ClassificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
Maximum Operating Temp121.0 CELSIUS FIRST RESPONSE DEGC
Thread Quantity Per Inch12 FIRST END
Nominal Outside Diameter Hose Accommodated1.437 INCHES SECOND END IN
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Surface Treatment Document and ClassificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
Maximum Operating Temp54.0 CELSIUS SECOND RESPONSE DEGC
Nominal Inside Diameter Hose Accommodated1.125 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated1.250 INCHES FIRST END IN
Surface TreatmentANODIZE INSIDE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-580-64538891-16D INTERCHANGEABLE
Elbow,tube to Hose
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
4730-00-618-8862 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-720-1166 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-784-2544 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-795-0945 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-817-1864 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-891-9343 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-919-6785 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-936-2363 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-00-936-2364 INTERCHANGEABLE
Adapter,straight,tube to Hose
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-83798/3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
136-1090-20D Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA)
8891-20D Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
680-20D Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
8791-20D Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
MIL-F-83798 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M83798/3-20 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS87020-20 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
136-1090-20D Hydrasearch Company, Llc (USA)
Related Parts
4730-00-580-6453INTERCHANGEABLE
ELBOW,TUBE TO HOSE
8891-16D
4730-00-618-8862INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-720-1166INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-784-2544INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-795-0945INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-817-1864INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-891-9343INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-919-6785INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-936-2363INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-00-936-2364INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-00-936-2365INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-01-071-7917INTERCHANGEABLE
ELBOW,TUBE TO HOSE

Frequently Asked Questions

What is NSN 4730-00-652-4626?

NSN 4730-00-652-4626 is a Elbow,tube to Hose, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-652-4626?

NSN 4730-00-652-4626 has 9 cross-referenced part numbers: MIL-DTL-83798/3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 136-1090-20D (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company), 8891-20D (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 680-20D (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), 8791-20D (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution) and 4 more.

What NSN replaces 4730-00-652-4626?

There are 12 known substitutes for 4730-00-652-4626: 4730-00-580-6453, 4730-00-618-8862, 4730-00-720-1166 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-83798/3?

Key specifications for MIL-DTL-83798/3: Nominal Thread Size: 1.625 INCHES FIRST END IN; Connection Type: THREADED INTERNAL TUBE FIRST END; Furnished Items and Quantity: 1 HOSE COUPLING NUT; Thread Series Designator: UNIFIED NATIONAL JOINT (UNJ) FIRST END. 28 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-652-4626 still in active supply?

NSN 4730-00-652-4626 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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