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R42051T0806 — REDUCER,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

R42051T0806: REDUCER,TUBE.

The REDUCER,TUBE is a the manufacturer industrial component. Key specifications include special_features: NAS 1760 MODIFIED, operating_pressure: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, end_item_identification: F-22 RAPTOR, specification/standard_data: 81349-MIL-F-85421 GOVERNMENT SPECIFICATION, part_name_assigned_by_controlling_agency: RYNGLOK REDUCING UNION; FEMALE FLARELESS TO PERMANENT. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-488-2442, 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
R42051T0806
NSN: 4730-01-488-2442
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
special_featuresNAS 1760 MODIFIED
operating_pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
end_item_identificationF-22 RAPTOR
specification/standard_data81349-MIL-F-85421 GOVERNMENT SPECIFICATION
part_name_assigned_by_controlling_agencyRYNGLOK REDUCING UNION; FEMALE FLARELESS TO PERMANENT
NSN4730-01-488-2442
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: R42051T0806 · 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
•
OPERATING PRESSURE: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-85421 GOVERNMENT SPECIFICATION
TECHNICAL CHARACTERISTICS
OPERATING PRESSURE4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SPECIFICATION/STANDARD DATA81349-MIL-F-85421 GOVERNMENT SPECIFICATION
SPECIAL FEATURESNAS 1760 MODIFIED
PART NAME ASSIGNED BY CONTROLLING AGENCYRYNGLOK REDUCING UNION; FEMALE FLARELESS TO PERMANENT
END ITEM IDENTIFICATIONF-22 RAPTOR
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R42051T0806?
R42051T0806 is a REDUCER,TUBE.
What is the NSN for R42051T0806?
R42051T0806 is cataloged in the U.S. Government catalog under NSN 4730-01-488-2442. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.