PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-83798Elbow,tube to Hose

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-559-1600 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-559-1600 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-559-1600. Primary manufacturer part number: MIL-DTL-83798.
Features
  • Elbow,tube to Hose — FSC 4730
  • Maximum Operating Temp: 121.0 FAHRENHEIT SECOND RESPONSE DEGF
  • Leg Length: 1.828 INCHES NOMINAL SECOND END IN
  • Material: ALUMINUM ALLOY OVERALL
  • Furnished Items and Quantity: 1 HOSE COUPLING NUT
  • Surface Treatment: ANODIZE OVERALL
  • Nominal Inside Diameter Hose Accommodated: 0.281 INCHES SECOND END IN
  • Seat Angle: 37.0 DEGREES 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 4730-00-559-1600, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-559-1600
Primary Part NumberMIL-DTL-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
Maximum Operating Temp121.0 FAHRENHEIT SECOND RESPONSE DEGF
Leg Length1.828 INCHES NOMINAL SECOND END IN
MaterialALUMINUM ALLOY OVERALL
Furnished Items and Quantity1 HOSE COUPLING NUT
Surface TreatmentANODIZE OVERALL
Nominal Inside Diameter Hose Accommodated0.281 INCHES SECOND END IN
Seat Angle37.0 DEGREES FIRST END
Nominal Thread Size0.500 INCHES FIRST END IN
Operating Pressure1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Maximum Operating Temp-54.0 FAHRENHEIT FIRST RESPONSE DEGF
Nominal Outside Diameter Hose Accommodated0.485 INCHES SECOND END IN
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
Surface Treatment Document and ClassificationQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE
Connection StyleGRIPPING NIPPLE (NOSE) SECOND END
Nominal Outside Diameter Tube Accommodated0.312 INCHES FIRST END IN
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Leg Length0.375 INCHES NOMINAL FIRST END IN
Flow Angle45.0 DEGREES
Thread Class3B FIRST END
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND END
Surface Treatment Document and ClassificationQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE INSIDE
Connection TypeTHREADED INTERNAL TUBE FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-087-1016 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-403-0886 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-541-8234 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-580-64538891-16D INTERCHANGEABLE
Elbow,tube to Hose
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
4730-00-580-8548 INTERCHANGEABLE
Elbow,tube to Hose
4730-00-585-6212 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-00-585-7496 INTERCHANGEABLE
Adapter,straight,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
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-83798 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M83798/2-5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS87019-5 Military Standards Promulgated by Military Departments 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
MIL-F-83798/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-83798/2-5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-087-1016INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-403-0886INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-541-8234INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-580-6453INTERCHANGEABLE
ELBOW,TUBE TO HOSE
8891-16D
4730-00-580-8548INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4730-00-585-6212INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-00-585-7496INTERCHANGEABLE
ADAPTER,STRAIGHT,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

Frequently Asked Questions

What is NSN 4730-00-559-1600?

NSN 4730-00-559-1600 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 4730-00-559-1600?

NSN 4730-00-559-1600 has 6 cross-referenced part numbers: MIL-DTL-83798 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M83798/2-5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS87019-5 (Military Standards Promulgated by Military Departments 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), MIL-F-83798/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 4730-00-559-1600?

There are 12 known substitutes for 4730-00-559-1600: 4730-00-087-1016, 4730-00-403-0886, 4730-00-541-8234 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-83798?

Key specifications for MIL-DTL-83798: Maximum Operating Temp: 121.0 FAHRENHEIT SECOND RESPONSE DEGF; Leg Length: 1.828 INCHES NOMINAL SECOND END IN; Material: ALUMINUM ALLOY OVERALL; Furnished Items and Quantity: 1 HOSE COUPLING NUT. 22 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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