PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3400-6Coupling Assembly,self-Sealing

Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution · NSN 4730-00-810-7776 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-810-7776 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-810-7776. Primary manufacturer part number: 3400-6.
Features
  • Coupling Assembly,self-Sealing — FSC 4730
  • Connection Type: THREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END
  • Thread Class: 2A FIRST QUICK DISCONNECT END A
  • Second End Relationship with First End: IDENTICAL
  • Connection Style: FLARED FIRST QUICK DISCONNECT END
  • Media for Which Designed: HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
  • Thread Series Designator: UNF FIRST QUICK DISCONNECT END
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Coupling Assembly,self-Sealing, cataloged under National Stock Number 4730-00-810-7776, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-810-7776
Primary Part Number3400-6
Item NameCoupling Assembly,self-Sealing
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
StatusACTIVE
Connection TypeTHREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END
Thread Class2A FIRST QUICK DISCONNECT END A
Second End Relationship with First EndIDENTICAL
Connection StyleFLARED FIRST QUICK DISCONNECT END
Media for Which DesignedHYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
Thread Series DesignatorUNF FIRST QUICK DISCONNECT END
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size0.562 INCHES FIRST QUICK DISCONNECT END IN
MaterialALUMINUM ALLOY BODY
Seat Angle37.0 DEGREES
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST QUICK DISCONNECT END IN
Surface TreatmentANODIZE BODY
Style DesignatorCOUPLING ASSEMBLY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5935-00-192-4734 INTERCHANGEABLE
Jack,telephone
5120-00-222-1906 INTERCHANGEABLE
Punch,starter
5841-00-563-153734-476 INTERCHANGEABLE
Mounting
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
4320-00-821-9534108386 INTERCHANGEABLE
Pump,hydraulic Ram,hand Driven
Air Logistics Corporation Dba Air Logistics Corp
4720-01-014-49151120-6B-BLK-500 INTERCHANGEABLE
Tubing,nonmetallic
Parker-Hannifin Corp Div Parflex Division
6110-01-677-710434006 INTERCHANGEABLE
Distribution Box
Tpc Wire & Cable Corp Div Tpc Wire & Cable
Cross-Reference Index
Part NumberManufacturer
3400-6 PRIMARY Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
Related Parts
5935-00-192-4734INTERCHANGEABLE
JACK,TELEPHONE
5120-00-222-1906INTERCHANGEABLE
PUNCH,STARTER
5841-00-563-1537INTERCHANGEABLE
MOUNTING
34-476
4320-00-821-9534INTERCHANGEABLE
PUMP,HYDRAULIC RAM,HAND DRIVEN
108386
4720-01-014-4915INTERCHANGEABLE
TUBING,NONMETALLIC
1120-6B-BLK-500
6110-01-677-7104INTERCHANGEABLE
DISTRIBUTION BOX
34006

Frequently Asked Questions

What is NSN 4730-00-810-7776?

NSN 4730-00-810-7776 is a Coupling Assembly,self-Sealing, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-810-7776?

NSN 4730-00-810-7776 has 1 cross-referenced part number: 3400-6 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).

What NSN replaces 4730-00-810-7776?

There are 6 known substitutes for 4730-00-810-7776: 5935-00-192-4734, 5120-00-222-1906, 5841-00-563-1537 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3400-6?

Key specifications for 3400-6: Connection Type: THREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END; Thread Class: 2A FIRST QUICK DISCONNECT END A; Second End Relationship with First End: IDENTICAL; Overall Length: 4.206 INCHES NOMINAL IN. 14 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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