PartsTable
Technical Data Sheet
4-6FBZ-B ✓ 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 NUT, seat_angle: 20.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: FLARELESS (TUBE) FIRST END, nominal_thread_size: 0.438 INCHES FIRST 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 4730-01-056-3641, 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
4-6FBZ-B
NSN: 4730-01-056-3641
FSC: 4730
CAGE: 54938 — PARKER-HANNIFIN CORPORATION DIV INSTRUMENTATION PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY NUT
seat_angle20.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_styleFLARELESS (TUBE) FIRST END
nominal_thread_size0.438 INCHES FIRST END IN
nominal_overall_length1.440 INCHES IN
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_series_designatorUNF FIRST END
furnished_items_and_quantity1 SHORT COUPLING NUT WITH SLEEVE AND 1 FERRULE SLEEVE
material_document_and_classificationQQ-B-626,COMP 22,1/2 H FED SPEC 1ST MATERIAL RESPONSE BODY
reduced_passage_nominal_inside_diameter0.180 INCHES SECOND END IN
NSN4730-01-056-3641
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-6FBZ-B · 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: 0.438 INCHES FIRST END IN
MATERIAL: COPPER ALLOY NUT
NOMINAL OVERALL LENGTH: 1.440 INCHES IN
THREAD SERIES DESIGNATOR: NPT SECOND END
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,COMP 22,1/2 H FED SPEC 1ST MATERIAL RESPONSE BODY
CONNECTION STYLE: FLARELESS (TUBE) FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
MATERIALCOPPER ALLOY NUT
NOMINAL OVERALL LENGTH1.440 INCHES IN
MATERIALCOPPER ALLOY 360 OR COPPER ALLOY BODY
THREAD SERIES DESIGNATORNPT SECOND END
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,COMP 22,1/2 H FED SPEC 1ST MATERIAL RESPONSE BODY
CONNECTION STYLEFLARELESS (TUBE) FIRST END
MATERIALCOPPER ALLOY SLEEVE
CONNECTION STYLEPLAIN (PIPE) SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
S265-33-102Interchangeable
interchangeable cross-reference
interchangeable
24125Interchangeable
interchangeable cross-reference
interchangeable
11921Interchangeable
interchangeable cross-reference
interchangeable
AI121-4Interchangeable
interchangeable cross-reference
interchangeable
29-115HP5Interchangeable
interchangeable cross-reference
interchangeable
2940PL0896778Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-6FBZ-B?
4-6FBZ-B is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 4-6FBZ-B?
There are 18 known substitutes for 4-6FBZ-B: S265-33-102, 24125, 11921 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-6FBZ-B?
4-6FBZ-B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-056-3641. This indicates validated use in U.S. government and defense supply chains.
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