PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-83798/1Adapter,straight,tube to Hose

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-632-2002 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-632-2002 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-632-2002. Primary manufacturer part number: MIL-DTL-83798/1.
Features
  • Adapter,straight,tube to Hose — FSC 4730
  • Furnished Items and Quantity: 1 LONG COUPLING NUT
  • Nominal Inside Diameter Hose Accommodated: 0.438 INCHES SECOND END IN
  • Connection Type: THREADED INTERNAL TUBE FIRST END
  • Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN
  • Connection Style: GRIPPING NIPPLE (NOSE) SECOND END
  • Nominal Outside Diameter Hose Accommodated: 0.641 INCHES SECOND END IN
  • Connection Type: THREADED EXTERNAL HOSE GRIPPING SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-00-632-2002, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 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
NSN4730-00-632-2002
Primary Part NumberMIL-DTL-83798/1
Item NameAdapter,straight,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
Furnished Items and Quantity1 LONG COUPLING NUT
Nominal Inside Diameter Hose Accommodated0.438 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL TUBE FIRST END
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Connection StyleGRIPPING NIPPLE (NOSE) SECOND END
Nominal Outside Diameter Hose Accommodated0.641 INCHES SECOND END IN
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND END
MaterialALUMINUM ALLOY OVERALL
Thread Class3B FIRST END
Nominal Thread Size0.750 INCHES FIRST END IN
Seat Angle37.0 DEGREES FIRST END
Nominal Overall Length2.000 INCHES IN
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
Surface TreatmentANODIZE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-541-1957 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-00-585-6210 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-00-585-6212 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-00-585-7496 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-00-613-1859 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-00-618-7378 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-00-720-1171 INTERCHANGEABLE
Adapter,straight,tube to Hose
5950-00-809-45718108520 INTERCHANGEABLE
Reactor
Us Army Aviation and Missile Command
5950-00-822-07418168D INTERCHANGEABLE
Reactor
Robert M. Hadley Company, Inc.
4730-00-834-5456 INTERCHANGEABLE
Adapter,straight,tube to Hose
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-83798/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
816-8D Aeronautical Machinery Corp (USA)
526-8D Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
816-8D Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
GF503U8 Northrop Grumman Systems Corporation (USA)
136-1000-8D Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA)
M83798/1-8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-F-83798 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
136-1000-8D Hydrasearch Company, Llc (USA)
676-8D Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
Related Parts
4730-00-541-1957INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-00-585-6210INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-00-585-6212INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-00-585-7496INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-00-613-1859INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-00-618-7378INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-00-720-1171INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
5950-00-809-4571INTERCHANGEABLE
REACTOR
8108520
5950-00-822-0741INTERCHANGEABLE
REACTOR
8168D
4730-00-834-5456INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-01-083-9648INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-01-303-5932INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE

Frequently Asked Questions

What is NSN 4730-00-632-2002?

NSN 4730-00-632-2002 is a Adapter,straight,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 4730-00-632-2002?

NSN 4730-00-632-2002 has 10 cross-referenced part numbers: MIL-DTL-83798/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 816-8D (Aeronautical Machinery Corp), 526-8D (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 816-8D (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), GF503U8 (Northrop Grumman Systems Corporation) and 5 more.

What NSN replaces 4730-00-632-2002?

There are 12 known substitutes for 4730-00-632-2002: 4730-00-541-1957, 4730-00-585-6210, 4730-00-585-6212 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-83798/1?

Key specifications for MIL-DTL-83798/1: Furnished Items and Quantity: 1 LONG COUPLING NUT; Nominal Inside Diameter Hose Accommodated: 0.438 INCHES SECOND END IN; Connection Type: THREADED INTERNAL TUBE FIRST END; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-632-2002 still in active supply?

NSN 4730-00-632-2002 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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