PartsTable
Technical Data Sheet

MS6-EM1-1/2-S — VALVE,FLOW CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

MS6-EM1-1/2-S: VALVE,FLOW CONTROL.

The VALVE,FLOW CONTROL is a the manufacturer industrial component. Key specifications include body_material: ALUMINUM ALLOY, valve_operation_method: MANUAL, end_item_identification: LCS1 NEW CONSTRUCTION, operating_pressure_and_type: 261.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS, part_name_assigned_by_controlling_agency: START VALVE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-571-9485, 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
MS6-EM1-1/2-S
NSN: 4820-01-571-9485
FSC: 4820 — Valves, Nonpowered
CAGE: 45150 — FESTO CORPORATION (USA)
SPECIFICATIONS
body_materialALUMINUM ALLOY
valve_operation_methodMANUAL
end_item_identificationLCS1 NEW CONSTRUCTION
operating_pressure_and_type261.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS
part_name_assigned_by_controlling_agencySTART VALVE
NSN4820-01-571-9485
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MS6-EM1-1/2-S · 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 AND TYPE: 261.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS
•
BODY MATERIAL: ALUMINUM ALLOY
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
OPERATING PRESSURE AND TYPE261.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS
BODY MATERIALALUMINUM ALLOY
PART NAME ASSIGNED BY CONTROLLING AGENCYSTART VALVE
END ITEM IDENTIFICATIONLCS1 NEW CONSTRUCTION
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 2
16737 ITEM 4.1Reference document
Same NSN cross-reference
Reference document — Secondary reference
541268Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS6-EM1-1/2-S?
MS6-EM1-1/2-S is a VALVE,FLOW CONTROL.
What parts can replace MS6-EM1-1/2-S?
There are 2 known substitutes for MS6-EM1-1/2-S: 16737 ITEM 4.1, 541268. Substitute compatibility should be verified for your specific system.
What is the NSN for MS6-EM1-1/2-S?
MS6-EM1-1/2-S is cataloged in the U.S. Government catalog under NSN 4820-01-571-9485. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.