644131 — HOUSING,GEARBOX,TURBINE ENGINE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

644131: HOUSING,GEARBOX,TURBINE ENGINE.

The HOUSING,GEARBOX,TURBINE ENGINE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY SEATCOPPER ALLOY BODY, seat_angle: 30.0 DEGREES FIRST END, thread_class: 3A FIRST END3A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST ENDTHREADED EXTERNAL TUBE FIRST END, connection_style: GASKET SEAL (BOSS) SECOND ENDGASKET SEAL (BOSS) SECOND END, style_designator: ANGLE. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-486-3039, 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

644131

NSN: 4820-00-486-3039
NIINs: 004863039, 004877732
FSC: 4820 — Valves, Nonpowered
CAGE: 72352 — CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA FARRIS ENGINEERING DIV CURTISS-WRIGHT VALVES DIVISION- FARRIS (USA)

SPECIFICATIONS

material	COPPER ALLOY SEATCOPPER ALLOY BODY
seat_angle	30.0 DEGREES FIRST END
thread_class	3A FIRST END3A FIRST END A
connection_type	THREADED EXTERNAL TUBE FIRST ENDTHREADED EXTERNAL TUBE FIRST END
connection_style	GASKET SEAL (BOSS) SECOND ENDGASKET SEAL (BOSS) SECOND END
style_designator	ANGLE
thread_direction	RIGHT-HAND SECOND ENDRIGHT-HAND SECOND END
mounting_position	HORIZONTAL OR HORIZONTAL OR VERTICALVERTICAL
operating_pressure	300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_method	SPRINGSPRING
flow_control_device	BALLBALL
nominal_thread_size	0.375 INCHES SECOND END0.375 INCHES SECOND END IN
NSN	4820-00-486-3039

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: BALLBALL

•

RENEWABLE SEAT RING TYPE: PRESSED-INPRESSED-IN

•

NOMINAL PIPE SIZE ACCOMMODATED: 0.375 INCHES SECOND END0.375 INCHES SECOND END IN

•

CONNECTION STYLE: FLARED (TUBE) FIRST ENDFLARED (TUBE) FIRST END

•

MOUNTING POSITION: HORIZONTAL OR HORIZONTAL OR VERTICALVERTICAL

•

CONNECTION TYPE: THREADED INTERNAL PIPE SECOND ENDTHREADED INTERNAL PIPE SECOND END

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	BALLBALL
RENEWABLE SEAT RING TYPE	PRESSED-INPRESSED-IN
NOMINAL PIPE SIZE ACCOMMODATED	0.375 INCHES SECOND END0.375 INCHES SECOND END IN
CONNECTION STYLE	FLARED (TUBE) FIRST ENDFLARED (TUBE) FIRST END
CONNECTION STYLE	GASKET SEAL (BOSS) SECOND ENDGASKET SEAL (BOSS) SECOND END
MOUNTING POSITION	HORIZONTAL OR HORIZONTAL OR VERTICALVERTICAL
CONNECTION TYPE	THREADED INTERNAL PIPE SECOND ENDTHREADED INTERNAL PIPE SECOND END
CONNECTION TYPE	THREADED EXTERNAL TUBE FIRST ENDTHREADED EXTERNAL TUBE FIRST END
STYLE DESIGNATOR	ANGLE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	0.500 INCHES FIRST END IN

SUBSTITUTES & CROSS-REFERENCES 1

407DT8Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 644131?

644131 is a HOUSING,GEARBOX,TURBINE ENGINE.

What parts can replace 644131?

There is 1 known substitute for 644131: 407DT8. Substitute compatibility should be verified for your specific system.

What is the NSN for 644131?

644131 is cataloged in the U.S. Government catalog under NSN 4820-00-486-3039. This indicates validated use in U.S. government and defense supply chains.

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644131 — HOUSING,GEARBOX,TURBINE ENGINE

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