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SML000503 ✓ 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,BALL is a the manufacturer industrial component. Key specifications include special_features: SIZE 1.0 IN. IN, style_designator: STRAIGHT THRU, valve_operation_method: MANUAL, end_item_identification: ELTECH ENVIRO SYSTEMS;MARINE SANITATION DEVICE;MODEL 8MS MS.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-346-9667, 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
SML000503
NSN: 4820-01-346-9667
FSC: 4820
CAGE: Z1480 — NQEA MARINE SAFETY PTY LTD (AUS)
SPECIFICATIONS
special_featuresSIZE 1.0 IN. IN
style_designatorSTRAIGHT THRU
valve_operation_methodMANUAL
end_item_identificationELTECH ENVIRO SYSTEMS;MARINE SANITATION DEVICE;MODEL 8MS MS
NSN4820-01-346-9667
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: SML000503 · 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
•
STYLE DESIGNATOR: STRAIGHT THRU
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONELTECH ENVIRO SYSTEMS;MARINE SANITATION DEVICE;MODEL 8MS MS
SPECIAL FEATURESSIZE 1.0 IN. IN
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODMANUAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
7283Interchangeable
interchangeable cross-reference
interchangeable
653Interchangeable
interchangeable cross-reference
interchangeable
3247Interchangeable
interchangeable cross-reference
interchangeable
115265Interchangeable
interchangeable cross-reference
interchangeable
TM539Interchangeable
interchangeable cross-reference
interchangeable
U1206TSInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SML000503?
SML000503 is a VALVE,BALL.
What parts can replace SML000503?
There are 16 known substitutes for SML000503: 7283, 653, 3247 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SML000503?
SML000503 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-346-9667. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026