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Technical Data Sheet
PartsTable / COMPONENT / M52525/2-4-4
M52525/2-4-4 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The M52525/2-4-4 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-075-3477, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
M52525/2-4-4
NSN: 4730-01-075-3477
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM52525/2-4-4
NSN4730-01-075-3477
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M52525/2-4-4 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NONDEFINITIVE SPEC/STD DATA: B TYPE
•
CONNECTION STYLE: GRIPPING NIPPLE (NOSE) SECOND END
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING SECOND END
•
MATERIAL: STEEL OR IRON OVERALL
•
THREAD SERIES DESIGNATOR: UNF FIRST END
•
LEG LENGTH: 0.851 INCHES NOMINAL FIRST END IN
•
OPERATING PRESSURE: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATAB TYPE
CONNECTION STYLEGRIPPING NIPPLE (NOSE) SECOND END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING SECOND END
MATERIALSTEEL OR IRON OVERALL
THREAD SERIES DESIGNATORUNF FIRST END
LEG LENGTH0.851 INCHES NOMINAL FIRST END IN
OPERATING PRESSURE5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
FLOW ANGLE45.0 DEGREES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
23730-4-4Interchangeable
interchangeable cross-reference
interchangeable
337041Interchangeable
interchangeable cross-reference
interchangeable
190287-4SInterchangeable
interchangeable cross-reference
interchangeable
12C12TNR45Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-52525Interchangeable
interchangeable cross-reference
interchangeable
MS39291-8-8BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M52525/2-4-4?
M52525/2-4-4 is a M52525/2-4-4.
What parts can replace M52525/2-4-4?
There are 16 known substitutes for M52525/2-4-4: 23730-4-4, 337041, 190287-4S and 13 more. Substitute compatibility should be verified for your specific system.
Is M52525/2-4-4 still available?
M52525/2-4-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026