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Technical Data Sheet
PartsTable / COMPONENT / 68C-3-4
68C-3-4 ✓ 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OR COPPER ALLOY 345 OR COPPER ALLOY 377 OVERALL, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) SECOND END, operating_pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 0.250 INCHES SECOND END IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-375-8051, 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
68C-3-4
NSN: 4730-01-375-8051
FSC: 4730
CAGE: 93061 — PARKER-HANNIFIN CORP DIV FLUID SYSTEM CONNECTOR DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OR COPPER ALLOY 345 OR COPPER ALLOY 377 OVERALL
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.250 INCHES SECOND END IN
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.030 INCHES IN
end_item_identificationCONSOLIDATED AUTOMATED SUPPORT SYSTEM (CASS)MSD DEC 96
media_for_which_designedFLUID SINGLE RESPONSE
thread_series_designatorNPTF SECOND END
nondefinitive_spec/std_data12A FIGURE A
NSN4730-01-375-8051
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 68C-3-4 · 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
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
NOMINAL THREAD SIZE: 0.375 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 1.030 INCHES IN
•
SPECIFICATION/STANDARD DATA: 81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.188 INCHES FIRST END IN
•
MATERIAL: COPPER ALLOY 360 OR COPPER ALLOY 345 OR COPPER ALLOY 377 OVERALL
•
MEDIA FOR WHICH DESIGNED: FLUID SINGLE RESPONSE
•
THREAD SERIES DESIGNATOR: NPTF SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
NOMINAL OVERALL LENGTH1.030 INCHES IN
SPECIFICATION/STANDARD DATA81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.188 INCHES FIRST END IN
MATERIALCOPPER ALLOY 360 OR COPPER ALLOY 345 OR COPPER ALLOY 377 OVERALL
MEDIA FOR WHICH DESIGNEDFLUID SINGLE RESPONSE
THREAD SERIES DESIGNATORNPTF SECOND END
FURNISHED ITEMS AND QUANTITY1 SHORT COUPLING NUT WITH SLEEVE AND 1 GASKET
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
A10218Interchangeable
interchangeable cross-reference
interchangeable
202049Interchangeable
interchangeable cross-reference
interchangeable
9986991Interchangeable
interchangeable cross-reference
interchangeable
7607420Interchangeable
interchangeable cross-reference
interchangeable
MCUR-0064-0Interchangeable
interchangeable cross-reference
interchangeable
3-4 060102BAInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 68C-3-4?
68C-3-4 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 68C-3-4?
There are 9 known substitutes for 68C-3-4: A10218, 202049, 9986991 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 68C-3-4?
68C-3-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-375-8051. 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