PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5653-27Hose,air Duct

Flexco, Inc · NSN 4720-00-051-9136 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-051-9136 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-051-9136. Primary manufacturer part number: 5653-27.
Features
  • Hose,air Duct — FSC 4720
  • End Overall Length: 1.250 INCHES NOMINAL BOTH ENDS IN
  • Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED
  • Connection Type: SOFT BOTH ENDS
  • Inside Diameter: 1.750 INCHES NOMINAL FIRST END IN
  • Connection Style: ROUND BOTH ENDS
  • Material: FIBERGLASS AND RUBBER SILICONE CLASS Q FIRST PLY
  • Cross-Sectional Shape Style: ROUND
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Fiberglass and Rubber Silicone Class Q First Ply construction
General Description

The Hose,air Duct, cataloged under National Stock Number 4720-00-051-9136, 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 Flexco, Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4720-00-051-9136
Primary Part Number5653-27
Item NameHose,air Duct
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerFlexco, Inc
StatusCANCELLED
End Overall Length1.250 INCHES NOMINAL BOTH ENDS IN
Style DesignatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
Connection TypeSOFT BOTH ENDS
Inside Diameter1.750 INCHES NOMINAL FIRST END IN
Connection StyleROUND BOTH ENDS
MaterialFIBERGLASS AND RUBBER SILICONE CLASS Q FIRST PLY
Cross-Sectional Shape StyleROUND
Measuring Method and Length3.250 INCHES NOMINAL OVERALL IN
Wall Thickness0.065 INCHES NOMINAL IN
End Inside Diameter1.750 INCHES NOMINAL BOTH ENDS IN
MaterialFIBERGLASS AND RUBBER SILICONE CLASS Q SECOND PLY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5331-00-377-0391709469PC8 INTERCHANGEABLE
O-Ring
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
5305-00-383-89365653 INTERCHANGEABLE
Screw,cap,hexagon Head
Mitsubishi Caterpillar Forklift America, Inc
5342-00-972-41035653A INTERCHANGEABLE
Handle,special
Eastern Co Div Eberhard Manufacturing
5330-01-072-5291440676 INTERCHANGEABLE
Packing,preformed
Bae Systems Information and Electronic Systems Integration Inc.
4810-01-196-5332 INTERCHANGEABLE
Body and Spool,valve,linear Dire
2825-01-279-44845653 INTERCHANGEABLE
Sleeve,pump
Northrop Grumman Systems Corporation Div Marine Systems
5935-01-371-7547229973-0001 INTERCHANGEABLE
Connector,receptacle,electrical
Thales Usa, Inc. Div Air Mobility Solutions ("ams")
6515-01-558-882161203 INTERCHANGEABLE
Mask,oronasal
Dimensions Medical Supply Group, Inc. Dba D M S G
Cross-Reference Index
Part NumberManufacturer
247-53610 Rockwell International Corp North American Aircraft Opns (USA)
5653 Flexco, Inc (USA)
5653-27 PRIMARY Flexco, Inc (USA)
247-53610-27 Rockwell International Corp North American Aircraft Opns (USA)
Related Parts
5331-00-377-0391INTERCHANGEABLE
O-RING
709469PC8
5305-00-383-8936INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5653
5342-00-972-4103INTERCHANGEABLE
HANDLE,SPECIAL
5653A
5330-01-072-5291INTERCHANGEABLE
PACKING,PREFORMED
440676
4810-01-196-5332INTERCHANGEABLE
BODY AND SPOOL,VALVE,LINEAR DIRE
2825-01-279-4484INTERCHANGEABLE
SLEEVE,PUMP
5653
5935-01-371-7547INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
229973-0001
6515-01-558-8821INTERCHANGEABLE
MASK,ORONASAL
61203

Frequently Asked Questions

What is NSN 4720-00-051-9136?

NSN 4720-00-051-9136 is a Hose,air Duct, manufactured by Flexco, Inc, classified under FSC 4720 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4720-00-051-9136?

NSN 4720-00-051-9136 has 4 cross-referenced part numbers: 247-53610 (Rockwell International Corp North American Aircraft Opns), 5653 (Flexco, Inc), 5653-27 (Flexco, Inc), 247-53610-27 (Rockwell International Corp North American Aircraft Opns).

What NSN replaces 4720-00-051-9136?

There are 8 known substitutes for 4720-00-051-9136: 5331-00-377-0391, 5305-00-383-8936, 5342-00-972-4103 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5653-27?

Key specifications for 5653-27: End Overall Length: 1.250 INCHES NOMINAL BOTH ENDS IN; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED; Connection Type: SOFT BOTH ENDS; Inside Diameter: 1.750 INCHES NOMINAL FIRST END IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4720-00-051-9136 still in active supply?

NSN 4720-00-051-9136 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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