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H849B-4-SS — THREAD PIECE,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

H849B-4-SS: THREAD PIECE,UNION.

The THREAD PIECE,UNION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316, seat_type: RECESSED FACE, overall_length: 0.625 INCHES NOMINAL IN, surface_treatment: PASSIVATE, end_connection_type: WELDED, application/function: U/O CPV MARK VIII VALVE SYSTEM. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-254-4766, 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
H849B-4-SS
NSN: 4730-01-254-4766
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 99565 — ADMIRAL VALVE LLC DBA CPV MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL COMP 316
seat_typeRECESSED FACE
overall_length0.625 INCHES NOMINAL IN
surface_treatmentPASSIVATE
end_connection_typeWELDED
application/functionU/O CPV MARK VIII VALVE SYSTEM
union_end_thread_size0.562-18
tubing_outside_diameter0.250 INCHES NOMINAL IN
union_end_thread_directionRIGHT-HAND
working_pressure_and_service_type3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL HYDRAULIC OIL LBS
union_end_screw_thread_series_designatorUNF
NSN4730-01-254-4766
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: H849B-4-SS · 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
•
UNION END THREAD DIRECTION: RIGHT-HAND
•
APPLICATION/FUNCTION: U/O CPV MARK VIII VALVE SYSTEM
•
END CONNECTION TYPE: WELDED
•
UNION END THREAD SIZE: 0.562-18
•
SEAT TYPE: RECESSED FACE
•
TUBING OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE
TECHNICAL CHARACTERISTICS
UNION END THREAD DIRECTIONRIGHT-HAND
APPLICATION/FUNCTIONU/O CPV MARK VIII VALVE SYSTEM
END CONNECTION TYPEWELDED
UNION END THREAD SIZE0.562-18
OVERALL LENGTH0.625 INCHES NOMINAL IN
SEAT TYPERECESSED FACE
TUBING OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE
UNION END SCREW THREAD SERIES DESIGNATORUNF
MATERIALSTEEL COMP 316
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 1
H849T-4-SSReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H849B-4-SS?
H849B-4-SS is a THREAD PIECE,UNION.
What parts can replace H849B-4-SS?
There is 1 known substitute for H849B-4-SS: H849T-4-SS. Substitute compatibility should be verified for your specific system.
What is the NSN for H849B-4-SS?
H849B-4-SS is cataloged in the U.S. Government catalog under NSN 4730-01-254-4766. This indicates validated use in U.S. government and defense supply chains.
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