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S6L650C — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

S6L650C: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flange_shape: ROUND FIRST END, connection_type: FLANGE FIRST END, style_designator: STRAIGHT THRU, mounting_position: HORIZONTAL, nominal_thickness: 0.250 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-689-5928, 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
S6L650C
NSN: 4820-00-689-5928
FSC: 4820 — Valves, Nonpowered
CAGE: 72021 — DURABLA MFG CO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flange_shapeROUND FIRST END
connection_typeFLANGE FIRST END
style_designatorSTRAIGHT THRU
mounting_positionHORIZONTAL
nominal_thickness0.250 INCHES FIRST END IN
flange_face_designPLAIN FIRST END
flow_control_deviceDISK
valve_operation_methodAUTOMATIC
nominal_outside_diameter4.365 INCHES FIRST END IN
NSN4820-00-689-5928
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S6L650C · 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
•
FLOW CONTROL DEVICE: DISK
•
FLANGE SHAPE: ROUND FIRST END
•
FLANGE FACE DESIGN: PLAIN FIRST END
•
MOUNTING POSITION: HORIZONTAL
•
CONNECTION TYPE: FLANGE FIRST END
•
STYLE DESIGNATOR: STRAIGHT THRU
•
NOMINAL OUTSIDE DIAMETER: 4.365 INCHES FIRST END IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
FLANGE SHAPEROUND FIRST END
FLANGE FACE DESIGNPLAIN FIRST END
MOUNTING POSITIONHORIZONTAL
CONNECTION TYPEFLANGE FIRST END
STYLE DESIGNATORSTRAIGHT THRU
NOMINAL OUTSIDE DIAMETER4.365 INCHES FIRST END IN
MATERIALSTEEL CORROSION RESISTING OVERALL
VALVE OPERATION METHODAUTOMATIC
NOMINAL THICKNESS0.250 INCHES FIRST END IN
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S6L650C?
S6L650C is a VALVE,CHECK.
What is the NSN for S6L650C?
S6L650C is cataloged in the U.S. Government catalog under NSN 4820-00-689-5928. 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.