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Technical Data Sheet
PartsTable / COMPONENT / 825 6X4
825 6X4 ✓ 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

ADAPTER,STRAIGHT,FLANGE TO FLANG. Key specifications include material: IRON OVERALL, flange_shape: ROUND ALL ENDS, connection_type: FLANGE ALL ENDS, nominal_thickness: 1.000 INCHES FIRST END IN, flange_face_design: PLAIN ALL ENDS, operating_pressure: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-288-8457, 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
825 6X4
NSN: 4730-00-288-8457
FSC: 4730
CAGE: 80996 — ITT GRINNELL CORP (USA)
SPECIFICATIONS
materialIRON OVERALL
flange_shapeROUND ALL ENDS
connection_typeFLANGE ALL ENDS
nominal_thickness1.000 INCHES FIRST END IN
flange_face_designPLAIN ALL ENDS
operating_pressure175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
nominal_overall_length9.000 INCHES IN
media_for_which_designedWATER-OIL-GAS SECOND RESPONSE
nominal_outside_diameter9.000 INCHES SECOND END IN
NSN4730-00-288-8457
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 825 6X4 · 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
•
FLANGE SHAPE: ROUND ALL ENDS
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SECOND RESPONSE
•
MATERIAL: IRON OVERALL
•
NOMINAL OVERALL LENGTH: 9.000 INCHES IN
•
NOMINAL THICKNESS: 0.938 INCHES SECOND END IN
•
OPERATING PRESSURE: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
•
FLANGE FACE DESIGN: PLAIN ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE SHAPEROUND ALL ENDS
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
MATERIALIRON OVERALL
NOMINAL OVERALL LENGTH9.000 INCHES IN
NOMINAL THICKNESS0.938 INCHES SECOND END IN
OPERATING PRESSURE175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
FLANGE FACE DESIGNPLAIN ALL ENDS
NOMINAL OUTSIDE DIAMETER11.000 INCHES FIRST END IN
NOMINAL THICKNESS1.000 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
547Interchangeable
interchangeable cross-reference
interchangeable
GGG-S-00731Interchangeable
interchangeable cross-reference
interchangeable
TE4440Interchangeable
interchangeable cross-reference
interchangeable
B280579Interchangeable
interchangeable cross-reference
interchangeable
53694Interchangeable
interchangeable cross-reference
interchangeable
PTFE THREAD SEAL TAPEInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 825 6X4?
825 6X4 is a ADAPTER,STRAIGHT,FLANGE TO FLANG.
What parts can replace 825 6X4?
There are 14 known substitutes for 825 6X4: 547, GGG-S-00731, TE4440 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 825 6X4?
825 6X4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-288-8457. 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