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Technical Data Sheet
PartsTable / COMPONENT / 4-1HBZ-B
4-1HBZ-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 REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 20.0 DEGREES SECOND END, reducer_type: CONCENTRIC, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARELESS (TUBE) SECOND END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-507-7297, 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
4-1HBZ-B
NSN: 4730-00-507-7297
FSC: 4730
CAGE: 54938 — PARKER-HANNIFIN CORPORATION DIV INSTRUMENTATION PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle20.0 DEGREES SECOND END
reducer_typeCONCENTRIC
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARELESS (TUBE) SECOND END
nominal_thread_size0.190 INCHES SECOND END IN
nominal_overall_length0.906 INCHES IN
thread_series_designatorUNF SECOND END
furnished_items_and_quantity2 TUBE COUPLING NUT W/SLEEVE
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-00-507-7297
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-1HBZ-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
•
MATERIAL: COPPER ALLOY OVERALL
•
NOMINAL OVERALL LENGTH: 0.906 INCHES IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.062 INCHES SECOND END IN
•
NOMINAL THREAD SIZE: 0.190 INCHES SECOND END IN
•
CONNECTION STYLE: FLARELESS (TUBE) SECOND END
•
REDUCER TYPE: CONCENTRIC
•
THREAD CLASS: 2A SECOND END A
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
NOMINAL OVERALL LENGTH0.906 INCHES IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.062 INCHES SECOND END IN
NOMINAL THREAD SIZE0.190 INCHES SECOND END IN
CONNECTION STYLEFLARELESS (TUBE) SECOND END
REDUCER TYPECONCENTRIC
THREAD CLASS2A SECOND END A
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
FURNISHED ITEMS AND QUANTITY2 TUBE COUPLING NUT W/SLEEVE
CONNECTION STYLEFLARELESS (TUBE) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
4-4 WBZ-BInterchangeable
interchangeable cross-reference
interchangeable
100116-003Interchangeable
interchangeable cross-reference
interchangeable
4BUInterchangeable
interchangeable cross-reference
interchangeable
B400-6-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-1HBZ-B?
4-1HBZ-B is a REDUCER,TUBE.
What parts can replace 4-1HBZ-B?
There are 4 known substitutes for 4-1HBZ-B: 4-4 WBZ-B, 100116-003, 4BU and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-1HBZ-B?
4-1HBZ-B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-507-7297. 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