PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4721-6Adapter,straight,tube to Hose

Danfoss Power Solutions II, Llc · NSN 4730-00-455-8650 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-455-8650 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-455-8650. Primary manufacturer part number: 4721-6.
Features
  • Adapter,straight,tube to Hose — FSC 4730
  • Nominal Thread Size: 0.562 INCHES FIRST END0.562 INCHES FIRST END IN
  • Maximum Operating Temp: 212.0 FAHRENHEIT SINGLE RESPONSE212.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Specification/standard Data: 81349-MIL-F-52525C GOVERNMENT SPECIFICATION
  • Connection Style: GRIPPING NIPPLE (NOSE) SECOND ENDGRIPPING NIPPLE (NOSE) SECOND END
  • Thread Series Designator: UNF FIRST END
  • Nominal Overall Length: 3.160 INCHES IN
  • Nominal Outside Diameter Hose Accommodated: 0.844 INCHES SECOND END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron or Steel Overall construction
General Description

The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-00-455-8650, 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 Danfoss Power Solutions II, Llc. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-455-8650
Primary Part Number4721-6
Item NameAdapter,straight,tube to Hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDanfoss Power Solutions II, Llc
StatusCANCELLED
Nominal Thread Size0.562 INCHES FIRST END0.562 INCHES FIRST END IN
Maximum Operating Temp212.0 FAHRENHEIT SINGLE RESPONSE212.0 FAHRENHEIT SINGLE RESPONSE DEGF
Specification/standard Data81349-MIL-F-52525C GOVERNMENT SPECIFICATION
Connection StyleGRIPPING NIPPLE (NOSE) SECOND ENDGRIPPING NIPPLE (NOSE) SECOND END
Thread Series DesignatorUNF FIRST END
Nominal Overall Length3.160 INCHES IN
Nominal Outside Diameter Hose Accommodated0.844 INCHES SECOND END IN
Nondefinitive Spec/std DataB TYPE
Seat Angle37.0 DEGREES FIRST END
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND ENDTHREADED EXTERNAL HOSE GRIPPING SECOND END
Surface TreatmentZINC OVERALL
Furnished Items and Quantity1 HOSE COUPLING NUT
Nominal Inside Diameter Hose Accommodated0.375 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL TUBE FIRST ENDTHREADED INTERNAL TUBE FIRST END
Surface Treatment Document and ClassificationQQ-Z-325,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialIRON OR STEEL OVERALL
Thread Class3B FIRST END3B FIRST END
Media for Which DesignedHYDRAULIC FLUID SINGLE RESPONSE
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST ENDSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Operating Pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-051-4709EF-S1600A-0606 INTERCHANGEABLE
Fitting,hose
Hydrasearch Company, Llc
3110-00-155-6433 INTERCHANGEABLE
Bearing,ball,annular
4730-00-451-2703 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-00-472-2611 INTERCHANGEABLE
Adapter,straight,tube to Hose
5999-01-055-279812-10089-07 INTERCHANGEABLE
Contact,electrical
Compaq Federal Llc
4730-01-074-7544 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-01-074-7545 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-01-075-1923 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-01-075-2102 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-01-075-2980 INTERCHANGEABLE
Adapter,straight,tube to Hose
Cross-Reference Index
Part NumberManufacturer
4721-6 Danfoss Power Solutions II, Llc (USA)
MIL-DTL-52525/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4721-6 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
MIL-F-52525 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M52525/1-6-6J Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS39290-6-6B Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
M52525/1-6-6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4721-6-6S Danfoss Power Solutions II, Llc (USA)
LT1-1212 Anthony York Co (USA)
Related Parts
4730-00-051-4709INTERCHANGEABLE
FITTING,HOSE
EF-S1600A-0606
3110-00-155-6433INTERCHANGEABLE
BEARING,BALL,ANNULAR
4730-00-451-2703INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-00-472-2611INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
5999-01-055-2798INTERCHANGEABLE
CONTACT,ELECTRICAL
12-10089-07
4730-01-074-7544INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-01-074-7545INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-01-075-1923INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-01-075-2102INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-01-075-2980INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-01-076-1515INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-01-076-1516INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE

Frequently Asked Questions

What is NSN 4730-00-455-8650?

NSN 4730-00-455-8650 is a Adapter,straight,tube to Hose, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-455-8650?

NSN 4730-00-455-8650 has 9 cross-referenced part numbers: 4721-6 (Danfoss Power Solutions II, Llc), MIL-DTL-52525/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4721-6 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), MIL-F-52525 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M52525/1-6-6J (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.

What NSN replaces 4730-00-455-8650?

There are 12 known substitutes for 4730-00-455-8650: 4730-00-051-4709, 3110-00-155-6433, 4730-00-451-2703 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4721-6?

Key specifications for 4721-6: Nominal Thread Size: 0.562 INCHES FIRST END0.562 INCHES FIRST END IN; End Item Identification: 3930-00-327-15753930-00-327-1575; Maximum Operating Temp: 212.0 FAHRENHEIT SINGLE RESPONSE212.0 FAHRENHEIT SINGLE RESPONSE DEGF; Specification/standard Data: 81349-MIL-F-52525C GOVERNMENT SPECIFICATION. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-455-8650 still in active supply?

NSN 4730-00-455-8650 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.
PartsTable Design LLC · partstable.com