PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-F-52525Adapter,straight,flange to Hose

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-075-6573 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-075-6573 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-075-6573. Primary manufacturer part number: MIL-F-52525.
Features
  • Adapter,straight,flange to Hose — FSC 4730
  • Connection Type: THREADED EXTERNAL HOSE GRIPPING SECOND END
  • Media for Which Designed: HYDRAULIC FLUID SINGLE RESPONSE
  • Furnished Items and Quantity: 1 HOSE COUPLING NUT
  • Operating Pressure: 1625.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nominal Outside Diameter: 2.375 INCHES FIRST END IN
  • Surface Treatment Document and Classification: QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Flange Face Design: PLAIN WITH GASKET GROOVE FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron or Steel Overall construction
General Description

The Adapter,straight,flange to Hose, cataloged under National Stock Number 4730-01-075-6573, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-075-6573
Primary Part NumberMIL-F-52525
Item NameAdapter,straight,flange to Hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND END
Media for Which DesignedHYDRAULIC FLUID SINGLE RESPONSE
Furnished Items and Quantity1 HOSE COUPLING NUT
Operating Pressure1625.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Outside Diameter2.375 INCHES FIRST END IN
Surface Treatment Document and ClassificationQQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Flange Face DesignPLAIN WITH GASKET GROOVE FIRST END
Nominal Inside Diameter Hose Accommodated1.250 INCHES SECOND END IN
Nominal Thickness0.315 INCHES FIRST END IN
Nominal Outside Diameter Hose Accommodated2.000 INCHES SECOND END IN
Nominal Overall Length5.350 INCHES IN
MaterialIRON OR STEEL OVERALL
Nondefinitive Spec/std DataB TYPE
Surface TreatmentZINC OVERALL
Specification/standard Data81349-MIL-F-52525C GOVERNMENT SPECIFICATION
Maximum Operating Temp212.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection TypeFLANGE FIRST END
Connection StyleGRIPPING NIPPLE (NOSE) SECOND END
Flange ShapeROUND FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4730-01-075-2103 INTERCHANGEABLE
Adapter,straight,flange to Hose
4730-01-075-2104 INTERCHANGEABLE
Adapter,straight,flange to Hose
4730-01-075-2983 INTERCHANGEABLE
Adapter,straight,flange to Hose
4730-01-075-5061 INTERCHANGEABLE
Adapter,straight,flange to Hose
4730-01-075-5062 INTERCHANGEABLE
Adapter,straight,flange to Hose
4730-01-075-6572 INTERCHANGEABLE
Adapter,straight,flange to Hose
4730-01-075-7314 INTERCHANGEABLE
Adapter,straight,flange to Hose
4730-01-075-7315 INTERCHANGEABLE
Adapter,straight,flange to Hose
Cross-Reference Index
Part NumberManufacturer
MIL-F-52525 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-52525/10 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M52525/10-20-24J Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M52525/10-20-24 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-01-075-2103INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO HOSE
4730-01-075-2104INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO HOSE
4730-01-075-2983INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO HOSE
4730-01-075-5061INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO HOSE
4730-01-075-5062INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO HOSE
4730-01-075-6572INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO HOSE
4730-01-075-7314INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO HOSE
4730-01-075-7315INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO HOSE

Frequently Asked Questions

What is NSN 4730-01-075-6573?

NSN 4730-01-075-6573 is a Adapter,straight,flange to Hose, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-075-6573?

NSN 4730-01-075-6573 has 4 cross-referenced part numbers: MIL-F-52525 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-52525/10 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M52525/10-20-24J (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M52525/10-20-24 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-01-075-6573?

There are 8 known substitutes for 4730-01-075-6573: 4730-01-075-2103, 4730-01-075-2104, 4730-01-075-2983 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-F-52525?

Key specifications for MIL-F-52525: Connection Type: THREADED EXTERNAL HOSE GRIPPING SECOND END; Media for Which Designed: HYDRAULIC FLUID SINGLE RESPONSE; Furnished Items and Quantity: 1 HOSE COUPLING NUT; Operating Pressure: 1625.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 19 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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