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PartsTable / COMPONENT / R44371D-10
R44371D-10 ✓ 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 CAP,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, thread_class: 3B INTERNAL, connection_style: SOCKET, style_designator: CAP, thread_direction: RIGHT-HAND INTERNAL, surface_treatment: ANODIZE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-547-0884, 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
R44371D-10
NSN: 4730-00-547-0884
FSC: 4730
CAGE: 50599 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV STRATOFLEX PRODUCT DIVISION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
thread_class3B INTERNAL
connection_styleSOCKET
style_designatorCAP
thread_directionRIGHT-HAND INTERNAL
surface_treatmentANODIZE OVERALL
nominal_thread_size0.8438 INCHES INTERNAL IN
fsc_application_dataPACER SPECIAL
thread_quantity_per_inch18 INTERNAL
thread_series_designatorUNJS INTERNAL
material_document_and_classificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
tube_outside_diameter_for_which_designed0.625 INCHES NOMINAL IN
NSN4730-00-547-0884
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: R44371D-10 · 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: 0.8438 INCHES INTERNAL IN
•
STYLE DESIGNATOR: CAP
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD CLASS: 3B INTERNAL
•
THREAD QUANTITY PER INCH: 18 INTERNAL
•
SURFACE TREATMENT: ANODIZE OVERALL
•
THREAD SERIES DESIGNATOR: UNJS INTERNAL
•
CONNECTION STYLE: SOCKET
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.8438 INCHES INTERNAL IN
STYLE DESIGNATORCAP
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD CLASS3B INTERNAL
THREAD QUANTITY PER INCH18 INTERNAL
SURFACE TREATMENTANODIZE OVERALL
THREAD SERIES DESIGNATORUNJS INTERNAL
CONNECTION STYLESOCKET
THREAD DIRECTIONRIGHT-HAND INTERNAL
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
RF5010C-DInterchangeable
interchangeable cross-reference
interchangeable
3861531-110Interchangeable
interchangeable cross-reference
interchangeable
R44371-D10Interchangeable
interchangeable cross-reference
interchangeable
07A251D-10Interchangeable
Same NIIN cross-reference
interchangeable
AE16911-10Interchangeable
Same NIIN cross-reference
interchangeable
R44371-10Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R44371D-10?
R44371D-10 is a CAP,TUBE.
What parts can replace R44371D-10?
There are 8 known substitutes for R44371D-10: RF5010C-D, 3861531-110, R44371-D10 and 5 more. Substitute compatibility should be verified for your specific system.
Is R44371D-10 still available?
R44371D-10 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026