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Technical Data Sheet

49F9798-59 — Technical Data Sheet

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— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The COCK,POPPET DRAIN is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: GASKET SEAL (BOSS) SECOND END, style_designator: STRAIGHT THRU. This part is cataloged in the Federal Logistics Information System under NSN 4820-00-821-8021, 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
49F9798-59
NSN: 4820-00-821-8021
FSC: 4820
CAGE: 80049 — DEPARTMENT OF THE AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
seat_angle37.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleGASKET SEAL (BOSS) SECOND END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
surface_treatmentANODIZE
operating_pressure60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_devicePOPPET
nominal_thread_size0.562 INCHES FIRST END IN
maximum_operating_temp160.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN4820-00-821-8021
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 49F9798-59 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION TYPE: THREADED INTERNAL BOSS SECOND END
•
THREAD DIRECTION: RIGHT-HAND SECOND END
•
FLOW CONTROL DEVICE: POPPET
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED INTERNAL BOSS SECOND END
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD DIRECTIONRIGHT-HAND FIRST END
FLOW CONTROL DEVICEPOPPET
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
VALVE OPERATION METHODMANUAL
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) SECOND END
CONNECTION STYLEFLARED (TUBE) FIRST END
SEAT ANGLE37.0 DEGREES FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
81012InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
P34522InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
GX343InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
311NRInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
L1070InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
800InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 49F9798-59?
49F9798-59 is a COCK,POPPET DRAIN.
What parts can replace 49F9798-59?
There are 20 known substitutes for 49F9798-59: 81012, P34522, GX343 and 17 more. Substitute compatibility should be verified for your specific system.
Is 49F9798-59 still available?
49F9798-59 is currently cancelled.
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