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Technical Data Sheet
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633644 ✓ 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 CORE,ELECTROMAGNETIC COMPONENT is a the manufacturer industrial component. Key specifications include color: WHITE, width: 4.000 INCHES NOMINAL IN, length: 180.000 INCHES NOMINAL IN, material: STEEL OVERALL, duty_type: HEAVY, bore_shape: STRAIGHT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-00-203-9360, 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
633644
NSN: 4810-00-203-9360
FSC: 4810
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
colorWHITE
width4.000 INCHES NOMINAL IN
length180.000 INCHES NOMINAL IN
materialSTEEL OVERALL
duty_typeHEAVY
bore_shapeSTRAIGHT
body_length0.250 INCHES NOMINAL IN
body_diameter0.135 INCHES NOMINAL IN
bore_diameter120.00 MILLIMETERS NOMINAL MM
overall_width22.0 MILLIMETERS NOMINAL MM
color_locationOVERALL
conductor_formBRAID, TUBULAR LOCATION NOT OTHERWISE SPECIFIED
NSN4810-00-203-9360
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 633644 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
120BC19Interchangeable
interchangeable cross-reference
interchangeable
XXLJ120Interchangeable
interchangeable cross-reference
interchangeable
451734Interchangeable
interchangeable cross-reference
interchangeable
6924Interchangeable
interchangeable cross-reference
interchangeable
8074Interchangeable
interchangeable cross-reference
interchangeable
AB6924Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 633644?
633644 is a CORE,ELECTROMAGNETIC COMPONENT.
What parts can replace 633644?
There are 12 known substitutes for 633644: 120BC19, XXLJ120, 451734 and 9 more. Substitute compatibility should be verified for your specific system.
Is 633644 still available?
633644 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026