PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-4721-12Adapter,straight,tube to Hose

Hydrasearch Company, Llc · NSN 4730-01-398-6625 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-398-6625 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-398-6625. Primary manufacturer part number: 4-4721-12.
Features
  • Adapter,straight,tube to Hose — FSC 4730
  • Nominal Overall Length: 3.860 INCHES IN
  • Thread Series Designator: UN FIRST END
  • Nominal Inside Diameter Hose Accommodated: 0.750 INCHES SECOND END IN
  • Maximum Operating Temp: 300.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Nominal Thread Size: 1.063 INCHES FIRST END IN
  • Seat Angle: 37.0 DEGREES FIRST END
  • Thread Class: 2B FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-01-398-6625, 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 Hydrasearch Company, Llc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-398-6625
Primary Part Number4-4721-12
Item NameAdapter,straight,tube to Hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHydrasearch Company, Llc
StatusACTIVE
Nominal Overall Length3.860 INCHES IN
Thread Series DesignatorUN FIRST END
Nominal Inside Diameter Hose Accommodated0.750 INCHES SECOND END IN
Maximum Operating Temp300.0 FAHRENHEIT SINGLE RESPONSE DEGF
Nominal Thread Size1.063 INCHES FIRST END IN
Seat Angle37.0 DEGREES FIRST END
Thread Class2B FIRST END
Media for Which DesignedHYDRAULIC FLUID SINGLE RESPONSE
MaterialCOPPER ALLOY OVERALL
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND END
Thread Quantity Per Inch12 FIRST END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Connection StyleGRIPPING NIPPLE (NOSE) SECOND END
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Nominal Outside Diameter Hose Accommodated1.250 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-034-50244-4721-20 INTERCHANGEABLE
Adapter,straight,tube to Hose
Hydrasearch Company, Llc
4730-00-547-0953282-4900-801823REVHPCF247FITTING INTERCHANGEABLE
Adapter,straight,tube to Hose
Naval Ship Systems Command
4730-01-340-5810 INTERCHANGEABLE
Adapter,straight,tube to Hose
4730-01-353-28964-4721-32 INTERCHANGEABLE
Adapter,straight,tube to Hose
Hydrasearch Company, Llc
4730-01-354-530230233-16-16B6 INTERCHANGEABLE
Adapter,straight,tube to Hose
Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
Cross-Reference Index
Part NumberManufacturer
4-4721-12 Danfoss Power Solutions II, Llc (USA)
4-4721-12 S Danfoss Power Solutions II, Llc (USA)
MIL-F-24787 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
CMC-4-5502-12-12 Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc (USA)
MIL-F-24787/2 GRI TY A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4-4721-12 PRIMARY Hydrasearch Company, Llc (USA)
Related Parts
4730-00-034-5024INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4-4721-20
4730-00-547-0953INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
282-4900-801823REVHPCF247FITTING
4730-01-340-5810INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4730-01-353-2896INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4-4721-32
4730-01-354-5302INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
30233-16-16B6

Frequently Asked Questions

What is NSN 4730-01-398-6625?

NSN 4730-01-398-6625 is a Adapter,straight,tube to Hose, manufactured by Hydrasearch Company, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-398-6625?

NSN 4730-01-398-6625 has 6 cross-referenced part numbers: 4-4721-12 (Danfoss Power Solutions II, Llc), 4-4721-12 S (Danfoss Power Solutions II, Llc), MIL-F-24787 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), CMC-4-5502-12-12 (Custom Hydraulic & Machine, Inc. Dba Custom Hydraulic & Machine Inc), MIL-F-24787/2 GRI TY A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 4730-01-398-6625?

There are 5 known substitutes for 4730-01-398-6625: 4730-00-034-5024, 4730-00-547-0953, 4730-01-340-5810 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-4721-12?

Key specifications for 4-4721-12: Nominal Overall Length: 3.860 INCHES IN; Thread Series Designator: UN FIRST END; Nominal Inside Diameter Hose Accommodated: 0.750 INCHES SECOND END IN; Maximum Operating Temp: 300.0 FAHRENHEIT SINGLE RESPONSE DEGF. 17 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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