PartsTable
Technical Data Sheet
633869 ✓ 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 material: ALUMINUM ALLOY SEAT, thread_class: 3B FIRST END, connection_style: GASKET SEAL (BOSS) FIRST END, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND FIRST END, surface_treatment: ANODIZE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-141-9051, 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
633869
NSN: 4820-00-141-9051
FSC: 4820
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY SEAT
thread_class3B FIRST END
connection_styleGASKET SEAL (BOSS) FIRST END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
surface_treatmentANODIZE
operating_pressure50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
nominal_thread_size1.312 INCHES FIRST END IN
valve_operation_methodAUTOMATIC
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
NSN4820-00-141-9051
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 633869 · 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
OPERATING PRESSURE: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD CLASS: 3B FIRST END
MATERIAL: ALUMINUM ALLOY SEAT
SURFACE TREATMENT: ANODIZE
THREAD QUANTITY PER INCH: 12 FIRST END
CONNECTION STYLE: GASKET SEAL (BOSS) FIRST END
DISK LOADING METHOD: SPRING
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS (FLIS)
OPERATING PRESSURE50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD CLASS3B FIRST END
MATERIALALUMINUM ALLOY SEAT
SURFACE TREATMENTANODIZE
THREAD QUANTITY PER INCH12 FIRST END
CONNECTION STYLEGASKET SEAL (BOSS) FIRST END
DISK LOADING METHODSPRING
VALVE OPERATION METHODAUTOMATIC
NOMINAL THREAD SIZE1.312 INCHES FIRST END IN
MATERIALALUMINUM ALLOY BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
301000Interchangeable
interchangeable cross-reference
interchangeable
301404Interchangeable
interchangeable cross-reference
interchangeable
400893Interchangeable
interchangeable cross-reference
interchangeable
72-6001Interchangeable
interchangeable cross-reference
interchangeable
387-3453Interchangeable
interchangeable cross-reference
interchangeable
6111SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 633869?
633869 is a VALVE,CHECK.
What parts can replace 633869?
There are 15 known substitutes for 633869: 301000, 301404, 400893 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 633869?
633869 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-141-9051. This indicates validated use in U.S. government and defense supply chains.
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