PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3150-4012Hose Assembly,nonmetallic

Unaflex Inc. · NSN 4720-01-028-1791 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-028-1791 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-028-1791. Primary manufacturer part number: 3150-4012.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Connection Style: PLAIN FIRST END
  • Inside Surface Condition: SMOOTH
  • Outside Diameter: 3.187 INCHES NOMINAL IN
  • Connection Type: PLAIN FACE FLANGE FIRST END
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
  • Flange Outside Diameter: 5.562 INCHES NOMINAL FIRST END IN
  • Bolt Hole Diameter: 0.562 INCHES NOMINAL FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-028-1791, 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 Unaflex Inc.. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-028-1791
Primary Part Number3150-4012
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerUnaflex Inc.
StatusACTIVE
Connection StylePLAIN FIRST END
Inside Surface ConditionSMOOTH
Outside Diameter3.187 INCHES NOMINAL IN
Connection TypePLAIN FACE FLANGE FIRST END
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
Flange Outside Diameter5.562 INCHES NOMINAL FIRST END IN
Bolt Hole Diameter0.562 INCHES NOMINAL FIRST END IN
Measuring Method and Length12.000 INCHES NOMINAL OVERALL IN
Hydrostatic Test Pressure225.0 POUNDS PER SQUARE INCH LBS
Flange StyleROUND W / BOLT HOLES FIRST END
Bolt Circle Diameter4.437 INCHES NOMINAL FIRST END IN
Temp Rating270.0 FAHRENHEIT SINGLE RESPONSE DEGF
Flange Thickness0.625 INCHES NOMINAL FIRST END IN
Vacuum in Torr12.7
End Flange ConstructionSOLID FIRST END
Cross-Sectional Shape StyleROUND
Inside Diameter2.000 INCHES NOMINAL IN
End Connection DesignSTRAIGHT FIRST END
Bolt Hole Quantity6 FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4730-00-192-88961-15-518 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-88982-15-618 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-88991-15-824 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-89002-15-2512 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-89022-15-315 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-89042-15-415 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-89052-15-518 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-401-37513111-7012-11-70 INTERCHANGEABLE
Spacer,flexible,pipeline
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5330-00-447-7718115212 INTERCHANGEABLE
Gasket
Lake Shore Systems, Inc.
6210-00-926-7683 INTERCHANGEABLE
Light,indicator
Cross-Reference Index
Part NumberManufacturer
3150-4012 PRIMARY Unaflex Inc. (USA)
CS4730-0130 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
C26128SZ2X12CND Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
CS4730-0130 2X12 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
C26128SZ2X12CNDN1 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
1-15-212 PRIMARY La Favorite Industries Inc. (USA)
C-26128 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
3111-0212-11-02 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
Related Parts
4730-00-192-8896INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
1-15-518
4730-00-192-8898INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
2-15-618
4730-00-192-8899INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
1-15-824
4730-00-192-8900INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
2-15-2512
4730-00-192-8902INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
2-15-315
4730-00-192-8904INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
2-15-415
4730-00-192-8905INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
2-15-518
4730-00-401-3751INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
3111-7012-11-70
5330-00-447-7718INTERCHANGEABLE
GASKET
115212
6210-00-926-7683INTERCHANGEABLE
LIGHT,INDICATOR
5305-01-560-0782INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
C26128

Frequently Asked Questions

What is NSN 4720-01-028-1791?

NSN 4720-01-028-1791 is a Hose Assembly,nonmetallic, manufactured by Unaflex Inc., classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-028-1791?

NSN 4720-01-028-1791 has 8 cross-referenced part numbers: 3150-4012 (Unaflex Inc.), CS4730-0130 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), C26128SZ2X12CND (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), CS4730-0130 2X12 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), C26128SZ2X12CNDN1 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc) and 3 more.

What NSN replaces 4720-01-028-1791?

There are 11 known substitutes for 4720-01-028-1791: 4730-00-192-8896, 4730-00-192-8898, 4730-00-192-8899 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3150-4012?

Key specifications for 3150-4012: Connection Style: PLAIN FIRST END; Inside Surface Condition: SMOOTH; Outside Diameter: 3.187 INCHES NOMINAL IN; Connection Type: PLAIN FACE FLANGE FIRST END. 20 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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