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Technical Data Sheet
PartsTable / COMPONENT / 20630-6-4M
20630-6-4M ✓ 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,TUBE TO HOSE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2B FIRST END, nominal_thread_size: 0.562 INCHES FIRST END IN, nominal_overall_length: 2.790 INCHES IN, thread_series_designator: UNF FIRST 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 4730-00-071-4784, 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
20630-6-4M
NSN: 4730-00-071-4784
FSC: 4730
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2B FIRST END
nominal_thread_size0.562 INCHES FIRST END IN
nominal_overall_length2.790 INCHES IN
thread_series_designatorUNF FIRST END
furnished_items_and_quantity1 SOCKET
criticality_code_justificationZZZX
departure_from_cited_designatorMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
material_document_and_classificationQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_inside_diameter_hose_accommodated0.375 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-00-071-4784
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 20630-6-4M · 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
•
THREAD CLASS: 2B FIRST END
•
DEPARTURE FROM CITED DESIGNATOR: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.375 INCHES SECOND END IN
•
SEAT ANGLE: 37.0 DEGREES FIRST END
•
FURNISHED ITEMS AND QUANTITY: 1 SOCKET
•
CRITICALITY CODE JUSTIFICATION: ZZZX
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B FIRST END
DEPARTURE FROM CITED DESIGNATORMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.375 INCHES SECOND END IN
SEAT ANGLE37.0 DEGREES FIRST END
FURNISHED ITEMS AND QUANTITY1 SOCKET
CRITICALITY CODE JUSTIFICATIONZZZX
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL THREAD SIZE0.562 INCHES FIRST END IN
NOMINAL OVERALL LENGTH2.790 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
CMC-4-5502-06-04Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-24787Interchangeable
interchangeable cross-reference
interchangeable
282-4900-801823REVHPCF247FITTINGInterchangeable
interchangeable cross-reference
interchangeable
MILH24135L1Interchangeable
Same NIIN cross-reference
interchangeable
20630-6-4NAInterchangeable
Same NIIN cross-reference
interchangeable
MILH24135Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20630-6-4M?
20630-6-4M is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 20630-6-4M?
There are 11 known substitutes for 20630-6-4M: CMC-4-5502-06-04, MIL-F-24787, 282-4900-801823REVHPCF247FITTING and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20630-6-4M?
20630-6-4M is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-071-4784. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026