PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ER816D4-4Adapter,straight,pipe to Tube

Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn · NSN 4730-00-679-1478 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-679-1478 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-679-1478. Primary manufacturer part number: ER816D4-4.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Thread Class: 3A FIRST END A
  • Thread Series Designator: NPT SECOND END
  • Nominal Thread Size: 0.438 INCHES FIRST END IN
  • Connection Style: FLARELESS (TUBE) FIRST END
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
  • Surface Treatment: ANODIZE OVERALL
  • Nominal Thread Size: 0.250 INCHES SECOND END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-679-1478, 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 Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 8 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
NSN4730-00-679-1478
Primary Part NumberER816D4-4
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker Hannifin Corp Stratoflex Div Aircraft Fittings Opn
StatusACTIVE
Thread Class3A FIRST END A
Thread Series DesignatorNPT SECOND END
Nominal Thread Size0.438 INCHES FIRST END IN
Connection StyleFLARELESS (TUBE) FIRST END
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
Surface TreatmentANODIZE OVERALL
Nominal Thread Size0.250 INCHES SECOND END IN
Connection StylePLAIN (PIPE) SECOND END
MaterialALUMINUM ALLOY OVERALL
Specification/standard Data81343-AS896 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Seat Angle12.0 DEGREES FIRST END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Nominal Overall Length1.250 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-186-9978AS897D0402 INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
4730-00-203-9725AS896F0402 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
4730-00-810-0198AS896-0606 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
4730-00-811-9313AS896D0602 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
4730-00-826-0639AS896J0606 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
4730-00-887-5828AS897D0404 INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
4730-01-102-4862AS897-0402 INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
4730-01-219-2013AS896J0804 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
4730-01-219-2014AS896J1616 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
4730-01-220-1663AS896J1612 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
ER816D4-4 Dana Corp Weatherhead Div (USA)
ER816D4-4 PRIMARY Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn (USA)
ER816D4-4 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
9093200 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
AS896D0404 PRIMARY Sae International Dba Sae International (USA)
AS896D0404 Society of Automotive Engineers Inc (USA)
SAE-AS4842/2 Sae International Dba Sae International (USA)
9197322 Dana Corp Weatherhead Div (USA)
9197522 Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA)
ER816D0404 PRIMARY Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA)
ER816D0404 Dana Corp Weatherhead Div (USA)
9197322 Us Army Aviation and Missile Command (USA)
Related Parts
4730-00-186-9978INTERCHANGEABLE
ELBOW,PIPE TO TUBE
AS897D0402
4730-00-203-9725INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
AS896F0402
4730-00-810-0198INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
AS896-0606
4730-00-811-9313INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
AS896D0602
4730-00-826-0639INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
AS896J0606
4730-00-887-5828INTERCHANGEABLE
ELBOW,PIPE TO TUBE
AS897D0404
4730-01-102-4862INTERCHANGEABLE
ELBOW,PIPE TO TUBE
AS897-0402
4730-01-219-2013INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
AS896J0804
4730-01-219-2014INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
AS896J1616
4730-01-220-1663INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
AS896J1612
4730-01-328-6810INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
AS896J0502
4730-01-343-0456INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
AS896K0502

Frequently Asked Questions

What is NSN 4730-00-679-1478?

NSN 4730-00-679-1478 is a Adapter,straight,pipe to Tube, manufactured by Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-679-1478?

NSN 4730-00-679-1478 has 12 cross-referenced part numbers: ER816D4-4 (Dana Corp Weatherhead Div), ER816D4-4 (Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn), ER816D4-4 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 9093200 (U S Army Tank Automotive Command Amsta-Im-Mm), AS896D0404 (Sae International Dba Sae International) and 7 more.

What NSN replaces 4730-00-679-1478?

There are 12 known substitutes for 4730-00-679-1478: 4730-00-186-9978, 4730-00-203-9725, 4730-00-810-0198 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ER816D4-4?

Key specifications for ER816D4-4: Thread Class: 3A FIRST END A; Thread Series Designator: NPT SECOND END; Nominal Thread Size: 0.438 INCHES FIRST END IN; Connection Style: FLARELESS (TUBE) FIRST END. 15 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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