PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-F-83798Elbow,tube to Hose

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-314-8817 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-314-8817 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-314-8817. Primary manufacturer part number: MIL-F-83798.
Features
  • Elbow,tube to Hose — FSC 4730
  • Nominal Inside Diameter Hose Accommodated: 0.344 INCHES SECOND END IN
  • Flow Angle: 45.0 DEGREES
  • Leg Length: 0.446 INCHES NOMINAL FIRST END IN
  • Thread Class: 3B FIRST END
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
  • Material: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 OVERALL
  • Nominal Thread Size: 0.563 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy 2024 or Aluminum Alloy 6061 Overall construction
General Description

The Elbow,tube to Hose, cataloged under National Stock Number 4730-01-314-8817, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-314-8817
Primary Part NumberMIL-F-83798
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
Nominal Inside Diameter Hose Accommodated0.344 INCHES SECOND END IN
Flow Angle45.0 DEGREES
Leg Length0.446 INCHES NOMINAL FIRST END IN
Thread Class3B FIRST END
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
MaterialALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 OVERALL
Nominal Thread Size0.563 INCHES FIRST END IN
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Seat Angle37.0 DEGREES FIRST END
Material Document and ClassificationQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Leg Length2.000 INCHES NOMINAL SECOND END IN
Connection TypeTHREADED INTERNAL TUBE FIRST END
Nominal Outside Diameter Hose Accommodated0.547 INCHES SECOND END IN
Connection StyleGRIPPING NIPPLE (NOSE) SECOND END
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4730-00-541-8234 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-559-1600 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-580-8548 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-618-7382 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-652-1802 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-684-6394 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-709-3887 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-813-6923 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-891-1947 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-891-1948 INTERCHANGEABLE
Elbow,tube to Hose
Cross-Reference Index
Part NumberManufacturer
MIL-F-83798 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-83798/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M83798/2-6L Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-541-8234INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-559-1600INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-580-8548INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-618-7382INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-652-1802INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-684-6394INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-709-3887INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-813-6923INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-891-1947INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-891-1948INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-01-314-8818INTERCHANGEABLE
ELBOW,TUBE TO HOSE

Frequently Asked Questions

What is NSN 4730-01-314-8817?

NSN 4730-01-314-8817 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 4730-01-314-8817?

NSN 4730-01-314-8817 has 3 cross-referenced part numbers: MIL-F-83798 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-83798/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M83798/2-6L (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-01-314-8817?

There are 11 known substitutes for 4730-01-314-8817: 4730-00-541-8234, 4730-00-559-1600, 4730-00-580-8548 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-F-83798?

Key specifications for MIL-F-83798: Special Features: LOCKWIRE HOLES ON SWIVEL NUT; Nominal Inside Diameter Hose Accommodated: 0.344 INCHES SECOND END IN; Flow Angle: 45.0 DEGREES; Leg Length: 0.446 INCHES NOMINAL FIRST END IN. 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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