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Technical Data Sheet
PartsTable / COMPONENT / 401-12-12S88
401-12-12S88 ✓ 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

ADAPTER,STRAIGHT,FLANGE TO HOSE. Key specifications include material: STEEL OR IRON OVERALL, flange_shape: ROUND FIRST END, connection_type: THREADED EXTERNAL HOSE GRIPPING SECOND END, connection_style: GRIPPING NIPPLE (NOSE) SECOND END, nominal_thickness: 0.265 INCHES FIRST END IN, surface_treatment: ZINC OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-075-5061, 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
401-12-12S88
NSN: 4730-01-075-5061
FSC: 4730
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialSTEEL OR IRON OVERALL
flange_shapeROUND FIRST END
connection_typeTHREADED EXTERNAL HOSE GRIPPING SECOND END
connection_styleGRIPPING NIPPLE (NOSE) SECOND END
nominal_thickness0.265 INCHES FIRST END IN
surface_treatmentZINC OVERALL
flange_face_designPLAIN WITH GASKET GROOVE FIRST END
operating_pressure2250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp212.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length4.250 INCHES IN
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
nominal_outside_diameter1.500 INCHES FIRST END IN
NSN4730-01-075-5061
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 401-12-12S88 · 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
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING SECOND END
•
SURFACE TREATMENT: ZINC OVERALL
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
•
FLANGE FACE DESIGN: PLAIN WITH GASKET GROOVE FIRST END
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-52525C GOVERNMENT SPECIFICATION
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NOMINAL THICKNESS: 0.265 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 4.250 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING SECOND END
SURFACE TREATMENTZINC OVERALL
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
FLANGE FACE DESIGNPLAIN WITH GASKET GROOVE FIRST END
SPECIFICATION/STANDARD DATA81349-MIL-F-52525C GOVERNMENT SPECIFICATION
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NOMINAL THICKNESS0.265 INCHES FIRST END IN
NOMINAL OVERALL LENGTH4.250 INCHES IN
NONDEFINITIVE SPEC/STD DATAB TYPE
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.750 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
M52525/10-8-8Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-52525/10Interchangeable
interchangeable cross-reference
interchangeable
M52525/10-8-8JInterchangeable
interchangeable cross-reference
interchangeable
M52525/10-20-20JInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-52525Interchangeable
interchangeable cross-reference
interchangeable
M52525/10-24-24JInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 401-12-12S88?
401-12-12S88 is a ADAPTER,STRAIGHT,FLANGE TO HOSE.
What parts can replace 401-12-12S88?
There are 16 known substitutes for 401-12-12S88: M52525/10-8-8, MIL-DTL-52525/10, M52525/10-8-8J and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 401-12-12S88?
401-12-12S88 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-075-5061. 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