PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

421FHD-3Coupling,pipe

Parker-Hannifin Corp Div Fluid System Connector Division · NSN 4730-01-279-7765 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-279-7765 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-279-7765. Primary manufacturer part number: 421FHD-3.
Features
  • Coupling,pipe — FSC 4730
  • 2 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corp Div Fluid System Connector Division
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Coupling,pipe, cataloged under National Stock Number 4730-01-279-7765, 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 Div Fluid System Connector Division. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCoupling,pipe
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersParker-Hannifin Corp Div Fluid System Connector Division (CAGE 93061); Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (CAGE 96046)
Technical Specifications
ParameterValue
NSN4730-01-279-7765
Primary Part Number421FHD-3
Item NameCoupling,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corp Div Fluid System Connector Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5945-00-257-6590 INTERCHANGEABLE
Relay,electromagnetic
2810-00-296-733176734 INTERCHANGEABLE
Zip Strap
Textron Lycoming Inc Williamsport Plant
3110-00-903-218212265597-1 INTERCHANGEABLE
Bearing,ball,annular
Rbc Aircraft Products, Inc.
5905-01-305-1946 INTERCHANGEABLE
Resistor,variable,wire Wound,non
4730-01-523-366776734 INTERCHANGEABLE
Bushing,pipe
DP Manufacturing Inc.
3120-01-528-31041006 INTERCHANGEABLE
Bushing,sleeve
Florida Aeronautics, Inc Dba Florida Aeronautics, Inc
Cross-Reference Index
Part NumberManufacturer
421FHD-3 PRIMARY Parker-Hannifin Corp Div Fluid System Connector Division (USA)
76734 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
Related Parts
5945-00-257-6590INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
2810-00-296-7331INTERCHANGEABLE
ZIP STRAP
76734
3110-00-903-2182INTERCHANGEABLE
BEARING,BALL,ANNULAR
12265597-1
5905-01-305-1946INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
4730-01-523-3667INTERCHANGEABLE
BUSHING,PIPE
76734
3120-01-528-3104INTERCHANGEABLE
BUSHING,SLEEVE
1006

Frequently Asked Questions

What is NSN 4730-01-279-7765?

NSN 4730-01-279-7765 is a Coupling,pipe, manufactured by Parker-Hannifin Corp Div Fluid System Connector Division, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-279-7765?

NSN 4730-01-279-7765 has 2 cross-referenced part numbers: 421FHD-3 (Parker-Hannifin Corp Div Fluid System Connector Division), 76734 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.).

What NSN replaces 4730-01-279-7765?

There are 6 known substitutes for 4730-01-279-7765: 5945-00-257-6590, 2810-00-296-7331, 3110-00-903-2182 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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