PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F21816D4Adapter,straight,pipe to Tube

Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution · NSN 4730-00-910-9868 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-910-9868 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-910-9868. Primary manufacturer part number: F21816D4.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Nominal Overall Length: 1.109 INCHES IN
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
  • Nominal Thread Size: 0.125 INCHES SECOND END IN
  • Connection Style: PLAIN (PIPE) SECOND END
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Connection Style: FLARED (TUBE) FIRST END
  • Thread Series Designator: UNF FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-910-9868, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-910-9868
Primary Part NumberF21816D4
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
StatusCANCELLED
Nominal Overall Length1.109 INCHES IN
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Nominal Thread Size0.125 INCHES SECOND END IN
Connection StylePLAIN (PIPE) SECOND END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Connection StyleFLARED (TUBE) FIRST END
Thread Series DesignatorUNF FIRST END
Nominal Thread Size0.438 INCHES FIRST END IN
Seat Angle37.0 DEGREES FIRST END
MaterialALUMINUM ALLOY 2024 OVERALL
Surface TreatmentANODIZE OUTSIDE
Thread Class3A FIRST END A
Surface TreatmentANODIZE INSIDE
Thread Series DesignatorANPT SECOND END
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4730-00-240-5905AS5194D0402 INTERCHANGEABLE
Adapter,straight,pipe to Boss
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
340-6220512 Hughes Missile Systems Co San Diego (USA)
F21816D4 PRIMARY Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
Related Parts
4730-00-240-5905INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO BOSS
AS5194D0402

Frequently Asked Questions

What is NSN 4730-00-910-9868?

NSN 4730-00-910-9868 is a Adapter,straight,pipe to Tube, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-910-9868?

NSN 4730-00-910-9868 has 2 cross-referenced part numbers: 340-6220512 (Hughes Missile Systems Co San Diego), F21816D4 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).

What NSN replaces 4730-00-910-9868?

There is 1 known substitute for 4730-00-910-9868: 4730-00-240-5905. Verify interchangeability with system specifications before substitution.

What are the specifications of F21816D4?

Key specifications for F21816D4: Nominal Overall Length: 1.109 INCHES IN; Connection Type: THREADED EXTERNAL PIPE SECOND END; Nominal Thread Size: 0.125 INCHES SECOND END IN; Connection Style: PLAIN (PIPE) SECOND END. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-910-9868 still in active supply?

NSN 4730-00-910-9868 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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