PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M83798/6-8Elbow,tube to Hose

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-389-7838 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-389-7838 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-389-7838. Primary manufacturer part number: M83798/6-8.
Features
  • Elbow,tube to Hose — FSC 4730
  • Surface Treatment: ANODIZE OVERALL
  • Nominal Inside Diameter Hose Accommodated: 0.440 INCHES SECOND END IN
  • Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN
  • Seat Angle: 12.0 DEGREES FIRST END
  • Operating Pressure: 1250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nominal Outside Diameter Hose Accommodated: 0.640 INCHES SECOND END IN
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Elbow,tube to Hose, cataloged under National Stock Number 4730-01-389-7838, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-389-7838
Primary Part NumberM83798/6-8
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
StatusACTIVE
Surface TreatmentANODIZE OVERALL
Nominal Inside Diameter Hose Accommodated0.440 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Seat Angle12.0 DEGREES FIRST END
Operating Pressure1250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Outside Diameter Hose Accommodated0.640 INCHES SECOND END IN
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
MaterialALUMINUM ALLOY OVERALL
Flow Angle90.0 DEGREES
Thread Class3B FIRST END
Maximum Operating Temp300.0 FAHRENHEIT SINGLE RESPONSE DEGF
Leg Length1.156 INCHES NOMINAL FIRST END IN
Connection StyleSWIVEL NUT, FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL) (TUBE) FIRST END
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND END
Connection TypeTHREADED INTERNAL TUBE FIRST END
Leg Length2.010 INCHES NOMINAL SECOND END IN
Nominal Thread Size0.750 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-087-1008 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-403-0886 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-936-2361 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-936-2367 INTERCHANGEABLE
Elbow,tube to Hose
4730-01-052-6478 INTERCHANGEABLE
Elbow,tube to Hose
Cross-Reference Index
Part NumberManufacturer
M83798/6-8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-83798/6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-087-1008INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-403-0886INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-936-2361INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-936-2367INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-01-052-6478INTERCHANGEABLE
ELBOW,TUBE TO HOSE

Frequently Asked Questions

What is NSN 4730-01-389-7838?

NSN 4730-01-389-7838 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: active.

What are the part numbers for NSN 4730-01-389-7838?

NSN 4730-01-389-7838 has 2 cross-referenced part numbers: M83798/6-8 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-83798/6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-01-389-7838?

There are 5 known substitutes for 4730-01-389-7838: 4730-00-087-1008, 4730-00-403-0886, 4730-00-936-2361 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M83798/6-8?

Key specifications for M83798/6-8: Surface Treatment: ANODIZE OVERALL; Nominal Inside Diameter Hose Accommodated: 0.440 INCHES SECOND END IN; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN; Seat Angle: 12.0 DEGREES FIRST END. 17 total characteristics are documented in the Federal Logistics Information System.

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