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PartsTable / COMPONENT / M52525/4-8-10
M52525/4-8-10 ✓ 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 M52525/4-8-10 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-075-7304, 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
M52525/4-8-10
NSN: 4730-01-075-7304
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM52525/4-8-10
NSN4730-01-075-7304
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M52525/4-8-10 · 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
•
NOMINAL THREAD SIZE: 0.875 INCHES FIRST END IN
•
LEG LENGTH: 3.130 INCHES NOMINAL FIRST END IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: B TYPE
•
OPERATING PRESSURE: 3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.625 INCHES FIRST END IN
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
•
THREAD CLASS: 2B FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.875 INCHES FIRST END IN
LEG LENGTH3.130 INCHES NOMINAL FIRST END IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATAB TYPE
OPERATING PRESSURE3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES FIRST END IN
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
THREAD CLASS2B FIRST END
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED0.969 INCHES SECOND END IN
MAXIMUM OPERATING TEMP212.0 FAHRENHEIT SINGLE RESPONSE DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
MS39293-8-8BInterchangeable
interchangeable cross-reference
interchangeable
M52525/4-8-8Interchangeable
interchangeable cross-reference
interchangeable
M52525/4-8-8JInterchangeable
interchangeable cross-reference
interchangeable
MIL-F-52525Interchangeable
interchangeable cross-reference
interchangeable
M52525/4-12-12JInterchangeable
interchangeable cross-reference
interchangeable
94-190263-12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M52525/4-8-10?
M52525/4-8-10 is a M52525/4-8-10.
What parts can replace M52525/4-8-10?
There are 16 known substitutes for M52525/4-8-10: MS39293-8-8B, M52525/4-8-8, M52525/4-8-8J and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M52525/4-8-10?
M52525/4-8-10 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-075-7304. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026