PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20630Hose,preformed

Gates Corporation · NSN 4720-01-034-8389 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-034-8389 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-034-8389. Primary manufacturer part number: 20630.
Features
  • Hose,preformed — FSC 4720
  • Wall Thickness: 0.180 INCHES NOMINAL IN
  • Second Arm Length: 1.500 INCHES NOMINAL IN
  • First Arm Length: 0.750 INCHES NOMINAL IN
  • Style Designator: TWO BEND MODIFIED "U"
  • Material: RUBBER SYNTHETIC OVERALL
  • Material: RUBBER SYNTHETIC COVER
  • Working Length: 14.000 INCHES NOMINAL IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Rubber Synthetic Overall construction
General Description

The Hose,preformed, cataloged under National Stock Number 4720-01-034-8389, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Gates Corporation. Government technical data includes 10 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-034-8389
Primary Part Number20630
Item NameHose,preformed
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerGates Corporation
StatusACTIVE
Wall Thickness0.180 INCHES NOMINAL IN
Second Arm Length1.500 INCHES NOMINAL IN
First Arm Length0.750 INCHES NOMINAL IN
Style DesignatorTWO BEND MODIFIED "U"
MaterialRUBBER SYNTHETIC OVERALL
MaterialRUBBER SYNTHETIC COVER
Working Length14.000 INCHES NOMINAL IN
Outer Radius3.500 INCHES NOMINAL IN
Inside Diameter1.500 INCHES NOMINAL IN
Bend Radius2.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5331-00-061-8355A2063094 INTERCHANGEABLE
O-Ring
Leslie Controls, Inc. Dba Leslie Controls Inc
5330-00-064-3360A100379 INTERCHANGEABLE
Seal,plain Encased
Curtiss-Wright Controls, Inc. Div Actuation Division
4730-00-226-808320630-4-4 INTERCHANGEABLE
Adapter,straight,tube to Hose
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
5306-00-282-0112 INTERCHANGEABLE
Bolt,square Neck
6605-00-319-848370624 INTERCHANGEABLE
Cover Assy
Northrop Grumman Systems Corporation
5841-00-333-8621 INTERCHANGEABLE
Gear and Stop Assem
5330-00-357-9777 INTERCHANGEABLE
Gasket
5331-00-506-487470624 INTERCHANGEABLE
O-Ring
Cummins Inc.
3455-00-516-508719819 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
3110-00-606-1841 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Cross-Reference Index
Part NumberManufacturer
20630 PRIMARY Gates Corporation (USA)
CH624 Parker-Hannifin Corporation Dba Industrial Hose Product Division Div Hose Products Division (USA)
70624 Dayco Products Llc (USA)
3780656 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
Related Parts
5331-00-061-8355INTERCHANGEABLE
O-RING
A2063094
5330-00-064-3360INTERCHANGEABLE
SEAL,PLAIN ENCASED
A100379
4730-00-226-8083INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
20630-4-4
5306-00-282-0112INTERCHANGEABLE
BOLT,SQUARE NECK
6605-00-319-8483INTERCHANGEABLE
COVER ASSY
70624
5841-00-333-8621INTERCHANGEABLE
GEAR AND STOP ASSEM
5330-00-357-9777INTERCHANGEABLE
GASKET
5331-00-506-4874INTERCHANGEABLE
O-RING
70624
3455-00-516-5087INTERCHANGEABLE
REAMER,MACHINE
19819
3110-00-606-1841INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2240-00-651-0551INTERCHANGEABLE
SEAT,DIAPHRAGM
70624
6220-00-898-7311INTERCHANGEABLE
POCKET ASSEMBLY
20630

Frequently Asked Questions

What is NSN 4720-01-034-8389?

NSN 4720-01-034-8389 is a Hose,preformed, manufactured by Gates Corporation, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-034-8389?

NSN 4720-01-034-8389 has 4 cross-referenced part numbers: 20630 (Gates Corporation), CH624 (Parker-Hannifin Corporation Dba Industrial Hose Product Division Div Hose Products Division), 70624 (Dayco Products Llc), 3780656 (Chrysler Realty Company Llc Dba Daimler Chrysler).

What NSN replaces 4720-01-034-8389?

There are 12 known substitutes for 4720-01-034-8389: 5331-00-061-8355, 5330-00-064-3360, 4730-00-226-8083 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20630?

Key specifications for 20630: Wall Thickness: 0.180 INCHES NOMINAL IN; Special Features: ONE EXTRA BEND AT FIRST END; Second Arm Length: 1.500 INCHES NOMINAL IN; First Arm Length: 0.750 INCHES NOMINAL IN. 11 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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