PartsTable
Technical Data Sheet
314129 ✓ Verified by PartsTable
· 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 VALVE,CHECK is a the manufacturer industrial component. Key specifications include thread_class: 3B FIRST END, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND FIRST END, mounting_position: HORIZONTAL, operating_pressure: 70.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, disk_loading_method: SPRING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-567-6640, 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
314129
NSN: 4820-00-567-6640
FSC: 4820
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
thread_class3B FIRST END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
mounting_positionHORIZONTAL
operating_pressure70.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
nominal_thread_size0.438 INCHES SECOND END IN
media_for_which_designedWATER, FRESH SINGLE RESPONSE
thread_quantity_per_inch20 SECOND END
thread_series_designatorUNF SECOND END
NSN4820-00-567-6640
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 314129 · 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
NOMINAL THREAD SIZE: 0.438 INCHES SECOND END IN
MOUNTING POSITION: HORIZONTAL
THREAD SERIES DESIGNATOR: UNF FIRST END
STYLE DESIGNATOR: STRAIGHT THRU
MEDIA FOR WHICH DESIGNED: WATER, FRESH SINGLE RESPONSE
OPERATING PRESSURE: 70.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTION: RIGHT-HAND FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
MOUNTING POSITIONHORIZONTAL
NOMINAL THREAD SIZE0.875 INCHES FIRST END IN
THREAD SERIES DESIGNATORUNF FIRST END
STYLE DESIGNATORSTRAIGHT THRU
MEDIA FOR WHICH DESIGNEDWATER, FRESH SINGLE RESPONSE
OPERATING PRESSURE70.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORUNF SECOND END
DISK LOADING METHODSPRING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
43300Interchangeable
interchangeable cross-reference
interchangeable
3-14203Interchangeable
interchangeable cross-reference
interchangeable
A14203Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 314129?
314129 is a VALVE,CHECK.
What parts can replace 314129?
There are 3 known substitutes for 314129: 43300, 3-14203, A14203. Substitute compatibility should be verified for your specific system.
Is 314129 still available?
314129 is currently cancelled.
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