PartsTable
Technical Data Sheet
271AB-6-4 ✓ 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

SLEEVE,COMPRESSION,TUBE-HOSE FIT. Key specifications include material: COPPER ALLOY 377 OVERALL, leg_length: 0.800 INCHES NOMINAL FIRST END IN, seat_angle: 20.0 DEGREES THIRD END, thread_class: 2A THIRD END A, connection_type: THREADED EXTERNAL TUBE THIRD END, connection_style: PLAIN (PIPE) SECOND END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-813-7811, 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
271AB-6-4
NSN: 4730-00-813-7811
FSC: 4730
CAGE: 93061 — PARKER-HANNIFIN CORP DIV FLUID SYSTEM CONNECTOR DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY 377 OVERALL
leg_length0.800 INCHES NOMINAL FIRST END IN
seat_angle20.0 DEGREES THIRD END
thread_class2A THIRD END A
connection_typeTHREADED EXTERNAL TUBE THIRD END
connection_stylePLAIN (PIPE) SECOND END
nominal_thread_size0.531 INCHES THIRD END IN
thread_quantity_per_inch24 THIRD END
thread_series_designatorUNS FIRST END
nondefinitive_spec/std_data3C FIGURE
specification/standard_data81343-J246 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
furnished_items_and_quantity2 COMPRESSION SLEEVE AND 2 TUBE COUPLING NUT
NSN4730-00-813-7811
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 271AB-6-4 · 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
SPECIFICATION/STANDARD DATA: 81343-J246 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
LEG LENGTH: 0.800 INCHES NOMINAL FIRST END IN
THREAD SERIES DESIGNATOR: UNS THIRD END
CONNECTION STYLE: FLARELESS (TUBE) FIRST END
MATERIAL: COPPER ALLOY 377 OVERALL
FURNISHED ITEMS AND QUANTITY: 2 COMPRESSION SLEEVE AND 2 TUBE COUPLING NUT
NONDEFINITIVE SPEC/STD DATA: 3C FIGURE
CONNECTION TYPE: THREADED EXTERNAL TUBE THIRD END
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA81343-J246 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
LEG LENGTH0.800 INCHES NOMINAL FIRST END IN
THREAD SERIES DESIGNATORUNS THIRD END
CONNECTION STYLEFLARELESS (TUBE) FIRST END
MATERIALCOPPER ALLOY 377 OVERALL
FURNISHED ITEMS AND QUANTITY2 COMPRESSION SLEEVE AND 2 TUBE COUPLING NUT
NONDEFINITIVE SPEC/STD DATA3C FIGURE
CONNECTION TYPETHREADED EXTERNAL TUBE THIRD END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
J246Interchangeable
interchangeable cross-reference
interchangeable
972906R91Interchangeable
interchangeable cross-reference
interchangeable
62AB-10Interchangeable
interchangeable cross-reference
interchangeable
205418Interchangeable
interchangeable cross-reference
interchangeable
BB9168Interchangeable
interchangeable cross-reference
interchangeable
10-12 120102BAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 271AB-6-4?
271AB-6-4 is a SLEEVE,COMPRESSION,TUBE-HOSE FIT.
What parts can replace 271AB-6-4?
There are 29 known substitutes for 271AB-6-4: J246, 972906R91, 62AB-10 and 26 more. Substitute compatibility should be verified for your specific system.
Is 271AB-6-4 still available?
271AB-6-4 is currently cancelled.
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