PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3755-6Coupling Half,quick Disconnect

Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution · NSN 4730-00-773-2620 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-773-2620 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-773-2620. Primary manufacturer part number: 3755-6.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Thread Series Designator: UNF ALL ENDS
  • Thread Class: 3A ALL ENDS A
  • Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
  • Leg Length: 0.562 INCHES NOMINAL IN
  • Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS
  • Features Provided: SELF-SEALING
  • Connection Style: FLARED ALL ENDS
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-773-2620, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-773-2620
Primary Part Number3755-6
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
StatusCANCELLED
Thread Series DesignatorUNF ALL ENDS
Thread Class3A ALL ENDS A
Connection TypeTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
Leg Length0.562 INCHES NOMINAL IN
Connection TypeEXTERNAL QUICK DISCONNECT ALL ENDS
Features ProvidedSELF-SEALING
Connection StyleFLARED ALL ENDS
Surface TreatmentANODIZE BODY
MaterialALUMINUM ALLOY BODY
Quick Disconnect MethodPUSH-PULL ALL ENDS
Style DesignatorMALE COUPLING HALF
Seat Angle37.0 DEGREES
Nominal Thread Size0.562 INCHES ALL ENDS IN
Nominal Outside Diameter Tube Accommodated0.375 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4320-00-060-680513217E3987 INTERCHANGEABLE
Pump Unit,centrifugal
Cecom Lr Center
5110-00-239-759731.615 INTERCHANGEABLE
File,hand
Grobet File Co of America Inc Dba Grobet Usa
5330-00-334-0517032225 INTERCHANGEABLE
Seal,plain Encased
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
5310-00-820-6653MS35338-50 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
2840-01-294-788437556 INTERCHANGEABLE
Housing,antifriction Bearing,air
Williams International Co., L.l.c.
3040-01-316-05663755-6 INTERCHANGEABLE
Weight,counterbalance
Naval Air Warfare Ctr Aircraft Div
5325-01-397-348637556 INTERCHANGEABLE
Insert,screw Thread
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
3755-6 PRIMARY Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
110-067-6F PRIMARY Bell Textron Inc (USA)
3755-6 Satair A/s (DNK)
110-067-6F Leonardo Spa Helicopters Division - Production Site (ITA)
Related Parts
4320-00-060-6805INTERCHANGEABLE
PUMP UNIT,CENTRIFUGAL
13217E3987
5110-00-239-7597INTERCHANGEABLE
FILE,HAND
31.615
5330-00-334-0517INTERCHANGEABLE
SEAL,PLAIN ENCASED
032225
5310-00-820-6653INTERCHANGEABLE
WASHER,LOCK
MS35338-50
2840-01-294-7884INTERCHANGEABLE
HOUSING,ANTIFRICTION BEARING,AIR
37556
3040-01-316-0566INTERCHANGEABLE
WEIGHT,COUNTERBALANCE
3755-6
5325-01-397-3486INTERCHANGEABLE
INSERT,SCREW THREAD
37556

Frequently Asked Questions

What is NSN 4730-00-773-2620?

NSN 4730-00-773-2620 is a Coupling Half,quick Disconnect, 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 4730-00-773-2620?

NSN 4730-00-773-2620 has 4 cross-referenced part numbers: 3755-6 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 110-067-6F (Bell Textron Inc), 3755-6 (Satair A/s), 110-067-6F (Leonardo Spa Helicopters Division - Production Site).

What NSN replaces 4730-00-773-2620?

There are 7 known substitutes for 4730-00-773-2620: 4320-00-060-6805, 5110-00-239-7597, 5330-00-334-0517 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3755-6?

Key specifications for 3755-6: Thread Series Designator: UNF ALL ENDS; Thread Class: 3A ALL ENDS A; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Leg Length: 0.562 INCHES NOMINAL IN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-773-2620 still in active supply?

NSN 4730-00-773-2620 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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